Rod,

Thanks!  I checked your station via 'today' API just after I sent that note and 
it looks fine to me, also.

I've set a timer for just before the top of the hour to capture your station's 
results, and again just after.  Should be the same as you doing the test from 
wunderdates.  LOL  =D

I'mma bug IBM tomorrow as much as my schedule allows.  I want them to schedule 
a real-time meeting so we can go over the outstanding issues and chip away at 
fixing them in priority order.   Clearly e-mail to one person doesn't cut it as 
a "support" model, even if that one person were, "all that and a bag of chips." 
 :-/

I may have mentioned that I am a persistent SOB.  LOL  ;-)
We'll get there.  =D

Regards,
\Leon
--
Leon Shaner :: Dearborn, Michigan (iPad Pro)

> On Jun 2, 2019, at 7:28 PM, Rod Yager <[email protected]> wrote:
> 
> The “today" result works as desired when I am ahead of the UTC date (as I am 
> at the moment and will be for the next 33 minutes)
> 
> [root@moses bin]# date
> Mon Jun  3 09:25:10 AEST 2019
> [root@moses bin]# /home/weewx/bin/wunderdates3 --epsilon=125 --station 
> ISYDNEY155 --test --verbose | (head -n 9 ; tail -n 1)
> Using configuration file /home/weewx/weewx.conf.
> Weather Underground Station:   ISYDNEY155
> Date to check:                 2019-06-03
> epoch: 1559484000 date_epoch_local: 2019-06-03 00:00:00 utcepoch: 1559483000 
> date_epoch_utc: 2019-06-02 14:00:00 tz: Australia/Sydney obsTimeUtc: 
> 2019-06-02T14:00:00Z obsTimeLocal: 2019-06-03 00:00:00
> epoch: 1559484300 date_epoch_local: 2019-06-03 00:05:00 utcepoch: 1559483300 
> date_epoch_utc: 2019-06-02 14:05:00 tz: Australia/Sydney obsTimeUtc: 
> 2019-06-02T14:05:00Z obsTimeLocal: 2019-06-03 00:05:00
> epoch: 1559484600 date_epoch_local: 2019-06-03 00:10:00 utcepoch: 1559483600 
> date_epoch_utc: 2019-06-02 14:10:00 tz: Australia/Sydney obsTimeUtc: 
> 2019-06-02T14:10:00Z obsTimeLocal: 2019-06-03 00:10:00
> epoch: 1559484900 date_epoch_local: 2019-06-03 00:15:00 utcepoch: 1559483900 
> date_epoch_utc: 2019-06-02 14:15:00 tz: Australia/Sydney obsTimeUtc: 
> 2019-06-02T14:15:00Z obsTimeLocal: 2019-06-03 00:15:00
> epoch: 1559485200 date_epoch_local: 2019-06-03 00:20:00 utcepoch: 1559484200 
> date_epoch_utc: 2019-06-02 14:20:00 tz: Australia/Sydney obsTimeUtc: 
> 2019-06-02T14:20:00Z obsTimeLocal: 2019-06-03 00:20:00
> epoch: 1559485500 date_epoch_local: 2019-06-03 00:25:00 utcepoch: 1559484500 
> date_epoch_utc: 2019-06-02 14:25:00 tz: Australia/Sydney obsTimeUtc: 
> 2019-06-02T14:25:00Z obsTimeLocal: 2019-06-03 00:25:00
> Number of WU records:          112
> 
> 
> So the problem only exists for 6 days [ yesterday and the preceeding days]
> 
> Rod
> 
>> On 3 Jun 2019, at 9:12 am, Leon Shaner <[email protected]> wrote:
>> 
>> Rod,
>> 
>> Thanks again for the added validation of what I saw earlier.
>> Never minding for now the issues with last week's data, what I am now most 
>> concerned to know is whether there is any point throughout the PRESENT day 
>> (your local time) that the latest wunderdates is showing the wrong results?
>> 
>> Recall that for the present day I am using a 'today' API which is for the 
>> 'today' results.
>> That method is working for my station at all times during the PRESENT day 
>> (even within my UTC offset of local midnight).
>> 
>> I thought I understood you to say that those changes were no good for you at 
>> certain times of the PRESENT day, such as before 10 a.m. your local time, 
>> was it?
>> 
>> Regards,
>> \Leon
>> --
>> Leon Shaner :: Dearborn, Michigan (iPad Pro)
>> 
>> On Jun 2, 2019, at 5:50 PM, Rod Yager <[email protected]> wrote:
>> 
>>> Well, it turns out that the East of the UTC date line bug only occurs for 
>>> the latest week. (I’d assumed that testing involving requests for the last 
>>> few days would show the behaviour, but that turned out to be wrong.)
>>> 
>>> At the moment, I’m a day ahead of UTC.  Here is the output for requests for 
>>> 2019-05-27 (within the last week and giving data for the 2019-05-28) and 
>>> for 2019-05-26 (not within the last week and giving the correct data for 
>>> 2019-05-06)  [I repeated the 2019-05-27 responses to show that they hadn’t 
>>> happened coincidentally at a time where WU fixed the problem.]  All dates 
>>> I’ve tested prior to 2019-05-27 also work as we would like. All dates 
>>> within the last week give data for the day following the day in the request.
>>> 
>>> [rodyager@moses ~]$ date
>>> Mon Jun  3 07:32:55 AEST 2019
>>> [rodyager@moses ~]$ /home/weewx/bin/wunderdates --epsilon=125 --date 
>>> 2019-05-27 --station ISYDNEY155 --test --verbose | (head -n 8 ; tail -n 1)
>>> Using configuration file /home/weewx/weewx.conf.
>>> Weather Underground Station:   ISYDNEY155
>>> Date to check:                 2019-05-27
>>> epoch: 1558965600 date_epoch_local: 2019-05-28 00:00:00 utcepoch: 
>>> 1558964600 date_epoch_utc: 2019-05-27 14:00:00 tz: Australia/Sydney 
>>> obsTimeUtc: 2019-05-27T14:00:00Z obsTimeLocal: 2019-05-28 00:00:00
>>> epoch: 1558965900 date_epoch_local: 2019-05-28 00:05:00 utcepoch: 
>>> 1558964900 date_epoch_utc: 2019-05-27 14:05:00 tz: Australia/Sydney 
>>> obsTimeUtc: 2019-05-27T14:05:00Z obsTimeLocal: 2019-05-28 00:05:00
>>> epoch: 1558966200 date_epoch_local: 2019-05-28 00:10:00 utcepoch: 
>>> 1558965200 date_epoch_utc: 2019-05-27 14:10:00 tz: Australia/Sydney 
>>> obsTimeUtc: 2019-05-27T14:10:00Z obsTimeLocal: 2019-05-28 00:10:00
>>> epoch: 1558966500 date_epoch_local: 2019-05-28 00:15:00 utcepoch: 
>>> 1558965500 date_epoch_utc: 2019-05-27 14:15:00 tz: Australia/Sydney 
>>> obsTimeUtc: 2019-05-27T14:15:00Z obsTimeLocal: 2019-05-28 00:15:00
>>> epoch: 1558966800 date_epoch_local: 2019-05-28 00:20:00 utcepoch: 
>>> 1558965800 date_epoch_utc: 2019-05-27 14:20:00 tz: Australia/Sydney 
>>> obsTimeUtc: 2019-05-27T14:20:00Z obsTimeLocal: 2019-05-28 00:20:00
>>> Number of WU records:          288
>>> [rodyager@moses ~]$ /home/weewx/bin/wunderdates --epsilon=125 --date 
>>> 2019-05-26 --station ISYDNEY155 --test --verbose | (head -n 8 ; tail -n 1)
>>> Using configuration file /home/weewx/weewx.conf.
>>> Weather Underground Station:   ISYDNEY155
>>> Date to check:                 2019-05-26
>>> epoch: 1558792800 date_epoch_local: 2019-05-26 00:00:00 utcepoch: 
>>> 1558791800 date_epoch_utc: 2019-05-25 14:00:00 tz: Australia/Sydney 
>>> obsTimeUtc: 2019-05-25T14:00:00Z obsTimeLocal: 2019-05-26 00:00:00
>>> epoch: 1558793100 date_epoch_local: 2019-05-26 00:05:00 utcepoch: 
>>> 1558792100 date_epoch_utc: 2019-05-25 14:05:00 tz: Australia/Sydney 
>>> obsTimeUtc: 2019-05-25T14:05:00Z obsTimeLocal: 2019-05-26 00:05:00
>>> epoch: 1558793400 date_epoch_local: 2019-05-26 00:10:00 utcepoch: 
>>> 1558792400 date_epoch_utc: 2019-05-25 14:10:00 tz: Australia/Sydney 
>>> obsTimeUtc: 2019-05-25T14:10:00Z obsTimeLocal: 2019-05-26 00:10:00
>>> epoch: 1558793700 date_epoch_local: 2019-05-26 00:15:00 utcepoch: 
>>> 1558792700 date_epoch_utc: 2019-05-25 14:15:00 tz: Australia/Sydney 
>>> obsTimeUtc: 2019-05-25T14:15:00Z obsTimeLocal: 2019-05-26 00:15:00
>>> epoch: 1558794000 date_epoch_local: 2019-05-26 00:20:00 utcepoch: 
>>> 1558793000 date_epoch_utc: 2019-05-25 14:20:00 tz: Australia/Sydney 
>>> obsTimeUtc: 2019-05-25T14:20:00Z obsTimeLocal: 2019-05-26 00:20:00
>>> Number of WU records:          288
>>> [rodyager@moses ~]$ /home/weewx/bin/wunderdates --epsilon=125 --date 
>>> 2019-05-27 --station ISYDNEY155 --test --verbose | (head -n 8 ; tail -n 1)
>>> Using configuration file /home/weewx/weewx.conf.
>>> Weather Underground Station:   ISYDNEY155
>>> Date to check:                 2019-05-27
>>> epoch: 1558965600 date_epoch_local: 2019-05-28 00:00:00 utcepoch: 
>>> 1558964600 date_epoch_utc: 2019-05-27 14:00:00 tz: Australia/Sydney 
>>> obsTimeUtc: 2019-05-27T14:00:00Z obsTimeLocal: 2019-05-28 00:00:00
>>> epoch: 1558965900 date_epoch_local: 2019-05-28 00:05:00 utcepoch: 
>>> 1558964900 date_epoch_utc: 2019-05-27 14:05:00 tz: Australia/Sydney 
>>> obsTimeUtc: 2019-05-27T14:05:00Z obsTimeLocal: 2019-05-28 00:05:00
>>> epoch: 1558966200 date_epoch_local: 2019-05-28 00:10:00 utcepoch: 
>>> 1558965200 date_epoch_utc: 2019-05-27 14:10:00 tz: Australia/Sydney 
>>> obsTimeUtc: 2019-05-27T14:10:00Z obsTimeLocal: 2019-05-28 00:10:00
>>> epoch: 1558966500 date_epoch_local: 2019-05-28 00:15:00 utcepoch: 
>>> 1558965500 date_epoch_utc: 2019-05-27 14:15:00 tz: Australia/Sydney 
>>> obsTimeUtc: 2019-05-27T14:15:00Z obsTimeLocal: 2019-05-28 00:15:00
>>> epoch: 1558966800 date_epoch_local: 2019-05-28 00:20:00 utcepoch: 
>>> 1558965800 date_epoch_utc: 2019-05-27 14:20:00 tz: Australia/Sydney 
>>> obsTimeUtc: 2019-05-27T14:20:00Z obsTimeLocal: 2019-05-28 00:20:00
>>> Number of WU records:          288
>>> 
>>> 
>>> Rod
>>> 
>>> 
>>>> On 3 Jun 2019, at 5:47 am, Leon Shaner <[email protected]> wrote:
>>>> 
>>>> Rod,
>>>> 
>>>> I've spent quite a bit of time working on a "cleaner" workaround for the 
>>>> WU bugs.
>>>> But just when I thought I had landed on the "reasonable" approach, I hit a 
>>>> snag.
>>>> 
>>>> As a reminder, with the latest approach, all is fine for stations west of 
>>>> the UTC date line.   What I am working on now is a workaround for stations 
>>>> east of the UTC date line, where the data returned is a day after the date 
>>>> requested.
>>>> 
>>>> The wall that I just hit is that the WU behavior around this latest bug 
>>>> changes, when looking historically.  :-(
>>>> 
>>>> From today's date going back to 2019-05-28, the query returns obsTimeLocal 
>>>> data from the day after the date requested.  This is the bug we are trying 
>>>> to workaround.
>>>> To compensate, I can ask for the prior date to get the date we really want.
>>>> 
>>>> HOWEVER, starting with 2019-05-26 (and prior), the query returns 
>>>> obsTimeLocal data for the date that was actually requested.
>>>> 
>>>> This leads to the inability to get data for 2019-05-27, because the actual 
>>>> query for that date returns 2019-05-28 datum, and the compensation date of 
>>>> 2019-05-26 returns actual data for 2019-05-26.
>>>> 
>>>> I think I am done trying to work around this bug.  IBM needs to own it.
>>>> 
>>>> See here -- scroll to second to last example where 2019-05-27 is 
>>>> requested, but when I tried 2019-05-26, I got back data for the actual 
>>>> 2019-05-26, so compensation did not work.  :-(
>>>> 
>>>> pi@nixie:/usr/share/weewx4/bin $ /usr/share/weewx4/bin/wunderdates 
>>>> --epsilon=125 --date 2019-06-02 --station ISYDNEY155 --test --verbose | 
>>>> (head -n 9 ; tail -n 1)
>>>> Using configuration file /usr/share/weewx4/weewx.conf.
>>>> Weather Underground Station:   ISYDNEY155
>>>> Date to check:                 2019-06-02
>>>> WU API obsTimeLocal:           2019-06-03
>>>> WU API WRONG DATE !!!!!!!!!!!!!!!!!!!!!!!
>>>> WU API COMPENSATION DATE:      2019-06-01
>>>> WU API obsTimeLocal:           2019-06-02
>>>> epoch: 1559397600 date_epoch_local: 2019-06-01 10:00:00 tz: 
>>>> Australia/Sydney obsTimeUtc: 2019-06-01T14:00:00Z obsTimeLocal: 2019-06-02 
>>>> 00:00:00
>>>> epoch: 1559397900 date_epoch_local: 2019-06-01 10:05:00 tz: 
>>>> Australia/Sydney obsTimeUtc: 2019-06-01T14:05:00Z obsTimeLocal: 2019-06-02 
>>>> 00:05:00
>>>> Number of WU records:          288
>>>> 
>>>> pi@nixie:/usr/share/weewx4/bin $ /usr/share/weewx4/bin/wunderdates 
>>>> --epsilon=125 --date 2019-06-01 --station ISYDNEY155 --test --verbose | 
>>>> (head -n 9 ; tail -n 1)
>>>> Using configuration file /usr/share/weewx4/weewx.conf.
>>>> Weather Underground Station:   ISYDNEY155
>>>> Date to check:                 2019-06-01
>>>> WU API obsTimeLocal:           2019-06-02
>>>> WU API WRONG DATE !!!!!!!!!!!!!!!!!!!!!!!
>>>> WU API COMPENSATION DATE:      2019-05-31
>>>> WU API obsTimeLocal:           2019-06-01
>>>> epoch: 1559311200 date_epoch_local: 2019-05-31 10:00:00 tz: 
>>>> Australia/Sydney obsTimeUtc: 2019-05-31T14:00:00Z obsTimeLocal: 2019-06-01 
>>>> 00:00:00
>>>> epoch: 1559311500 date_epoch_local: 2019-05-31 10:05:00 tz: 
>>>> Australia/Sydney obsTimeUtc: 2019-05-31T14:05:00Z obsTimeLocal: 2019-06-01 
>>>> 00:05:00
>>>> Number of WU records:          288
>>>> 
>>>> pi@nixie:/usr/share/weewx4/bin $ /usr/share/weewx4/bin/wunderdates 
>>>> --epsilon=125 --date 2019-05-31 --station ISYDNEY155 --test --verbose | 
>>>> (head -n 9 ; tail -n 1)
>>>> Using configuration file /usr/share/weewx4/weewx.conf.
>>>> Weather Underground Station:   ISYDNEY155
>>>> Date to check:                 2019-05-31
>>>> WU API obsTimeLocal:           2019-06-01
>>>> WU API WRONG DATE !!!!!!!!!!!!!!!!!!!!!!!
>>>> WU API COMPENSATION DATE:      2019-05-30
>>>> WU API obsTimeLocal:           2019-05-31
>>>> epoch: 1559224800 date_epoch_local: 2019-05-30 10:00:00 tz: 
>>>> Australia/Sydney obsTimeUtc: 2019-05-30T14:00:00Z obsTimeLocal: 2019-05-31 
>>>> 00:00:00
>>>> epoch: 1559225100 date_epoch_local: 2019-05-30 10:05:00 tz: 
>>>> Australia/Sydney obsTimeUtc: 2019-05-30T14:05:00Z obsTimeLocal: 2019-05-31 
>>>> 00:05:00
>>>> Number of WU records:          288
>>>> 
>>>> pi@nixie:/usr/share/weewx4/bin $ /usr/share/weewx4/bin/wunderdates 
>>>> --epsilon=125 --date 2019-05-30 --station ISYDNEY155 --test --verbose | 
>>>> (head -n 9 ; tail -n 1)
>>>> Using configuration file /usr/share/weewx4/weewx.conf.
>>>> Weather Underground Station:   ISYDNEY155
>>>> Date to check:                 2019-05-30
>>>> WU API obsTimeLocal:           2019-05-31
>>>> WU API WRONG DATE !!!!!!!!!!!!!!!!!!!!!!!
>>>> WU API COMPENSATION DATE:      2019-05-29
>>>> WU API obsTimeLocal:           2019-05-30
>>>> epoch: 1559138400 date_epoch_local: 2019-05-29 10:00:00 tz: 
>>>> Australia/Sydney obsTimeUtc: 2019-05-29T14:00:00Z obsTimeLocal: 2019-05-30 
>>>> 00:00:00
>>>> epoch: 1559138700 date_epoch_local: 2019-05-29 10:05:00 tz: 
>>>> Australia/Sydney obsTimeUtc: 2019-05-29T14:05:00Z obsTimeLocal: 2019-05-30 
>>>> 00:05:00
>>>> Number of WU records:          288
>>>> 
>>>> pi@nixie:/usr/share/weewx4/bin $ /usr/share/weewx4/bin/wunderdates 
>>>> --epsilon=125 --date 2019-05-29 --station ISYDNEY155 --test --verbose | 
>>>> (head -n 9 ; tail -n 1)
>>>> Using configuration file /usr/share/weewx4/weewx.conf.
>>>> Weather Underground Station:   ISYDNEY155
>>>> Date to check:                 2019-05-29
>>>> WU API obsTimeLocal:           2019-05-30
>>>> WU API WRONG DATE !!!!!!!!!!!!!!!!!!!!!!!
>>>> WU API COMPENSATION DATE:      2019-05-28
>>>> WU API obsTimeLocal:           2019-05-29
>>>> epoch: 1559052000 date_epoch_local: 2019-05-28 10:00:00 tz: 
>>>> Australia/Sydney obsTimeUtc: 2019-05-28T14:00:00Z obsTimeLocal: 2019-05-29 
>>>> 00:00:00
>>>> epoch: 1559052300 date_epoch_local: 2019-05-28 10:05:00 tz: 
>>>> Australia/Sydney obsTimeUtc: 2019-05-28T14:05:00Z obsTimeLocal: 2019-05-29 
>>>> 00:05:00
>>>> Number of WU records:          288
>>>> 
>>>> pi@nixie:/usr/share/weewx4/bin $ /usr/share/weewx4/bin/wunderdates 
>>>> --epsilon=125 --date 2019-05-28 --station ISYDNEY155 --test --verbose | 
>>>> (head -n 9 ; tail -n 1)
>>>> Using configuration file /usr/share/weewx4/weewx.conf.
>>>> Weather Underground Station:   ISYDNEY155
>>>> Date to check:                 2019-05-28
>>>> WU API obsTimeLocal:           2019-05-29
>>>> WU API WRONG DATE !!!!!!!!!!!!!!!!!!!!!!!
>>>> WU API COMPENSATION DATE:      2019-05-27
>>>> WU API obsTimeLocal:           2019-05-28
>>>> epoch: 1558965600 date_epoch_local: 2019-05-27 10:00:00 tz: 
>>>> Australia/Sydney obsTimeUtc: 2019-05-27T14:00:00Z obsTimeLocal: 2019-05-28 
>>>> 00:00:00
>>>> epoch: 1558965900 date_epoch_local: 2019-05-27 10:05:00 tz: 
>>>> Australia/Sydney obsTimeUtc: 2019-05-27T14:05:00Z obsTimeLocal: 2019-05-28 
>>>> 00:05:00
>>>> Number of WU records:          288
>>>> 
>>>> /usr/share/weewx4/bin/wunderdates --epsilon=125 --date 2019-05-27 
>>>> --station ISYDNEY155 --test --verbose | (head -n 9 ; tail -n 1)
>>>> Using configuration file /usr/share/weewx4/weewx.conf.
>>>> Weather Underground Station:   ISYDNEY155
>>>> Date to check:                 2019-05-27
>>>> WU API obsTimeLocal:           2019-05-28
>>>> WU API WRONG DATE !!!!!!!!!!!!!!!!!!!!!!!
>>>> WU API COMPENSATION DATE:      2019-05-26
>>>> WU API obsTimeLocal:           2019-05-26
>>>> WU API COMPSENSATION FAILURE! ABORTING!!!
>>>> Number of WU records:          0
>>>> 
>>>> No results returned from Weather Underground (perhaps a bad station 
>>>> name??).
>>>> 
>>>> 
>>>> pi@nixie:/usr/share/weewx4/bin $ /usr/share/weewx4/bin/wunderdates 
>>>> --epsilon=125 --date 2019-05-26 --station ISYDNEY155 --test --verbose | 
>>>> (head -n 9 ; tail -n 1)
>>>> Using configuration file /usr/share/weewx4/weewx.conf.
>>>> Weather Underground Station:   ISYDNEY155
>>>> Date to check:                 2019-05-26
>>>> WU API obsTimeLocal:           2019-05-26
>>>> epoch: 1558792800 date_epoch_local: 2019-05-25 10:00:00 tz: 
>>>> Australia/Sydney obsTimeUtc: 2019-05-25T14:00:00Z obsTimeLocal: 2019-05-26 
>>>> 00:00:00
>>>> epoch: 1558793100 date_epoch_local: 2019-05-25 10:05:00 tz: 
>>>> Australia/Sydney obsTimeUtc: 2019-05-25T14:05:00Z obsTimeLocal: 2019-05-26 
>>>> 00:05:00
>>>> epoch: 1558793400 date_epoch_local: 2019-05-25 10:10:00 tz: 
>>>> Australia/Sydney obsTimeUtc: 2019-05-25T14:10:00Z obsTimeLocal: 2019-05-26 
>>>> 00:10:00
>>>> epoch: 1558793700 date_epoch_local: 2019-05-25 10:15:00 tz: 
>>>> Australia/Sydney obsTimeUtc: 2019-05-25T14:15:00Z obsTimeLocal: 2019-05-26 
>>>> 00:15:00
>>>> epoch: 1558794000 date_epoch_local: 2019-05-25 10:20:00 tz: 
>>>> Australia/Sydney obsTimeUtc: 2019-05-25T14:20:00Z obsTimeLocal: 2019-05-26 
>>>> 00:20:00
>>>> Number of WU records:          288
>>>> 
>>>> Regards,
>>>> \Leon
>>>> --
>>>> Leon Shaner :: Dearborn, Michigan (iPad Pro)
>>>> 
>>>> On Jun 2, 2019, at 10:20 AM, Leon Shaner <[email protected]> wrote:
>>>> 
>>>>> Rod,
>>>>> 
>>>>> It's interesting that the "workaround" that I've already done, is 
>>>>> actually working 100% for me.   I got good results when combining the 
>>>>> 'today' API when asking for the current date, and only using the 
>>>>> 'historical' result when asking for dates other than the current date -- 
>>>>> relative to station local time.
>>>>> 
>>>>> Here is my KMIDEARB5 station's transition from 7:59 p.m. to 8:00 p.m, 
>>>>> where time moves to within the UTC-4 offset:
>>>>> 
>>>>> $ diff 59:19:1:6_wu.txt 0:20:1:6_wu.txt
>>>>> 241c241,242
>>>>> < Number of WU records:          239
>>>>> ---
>>>>> > epoch: 1559433599 date_epoch_local: 2019-06-01 19:59:59 utcepoch: 
>>>>> > 1559433999 date_epoch_utc: 2019-06-01 23:59:59 tz: America/New_York 
>>>>> > obsTimeUtc: 2019-06-01T23:59:59Z obsTimeLocal: 2019-06-01 19:59:59
>>>>> > Number of WU records:          240
>>>>> 
>>>>> The above is exactly correct -- the second query is one minute later and 
>>>>> is after/on the 5-minute record "boundary" hence one additional record.
>>>>> 
>>>>> And then as my station transition from 11:59 p.m. to midnight next day.  
>>>>> Before midnight the 'today' API is used, but after midnight the 
>>>>> 'historical' API will be used, which was always working for me after 
>>>>> midnight (station local time):
>>>>> 
>>>>> $ tail -n 4 59:23:1:6_wu.txt 0:0:2:6_wu.txt
>>>>> ==> 59:23:1:6_wu.txt <==
>>>>> epoch: 1559447399 date_epoch_local: 2019-06-01 23:49:59 utcepoch: 
>>>>> 1559447799 date_epoch_utc: 2019-06-02 03:49:59 tz: America/New_York 
>>>>> obsTimeUtc: 2019-06-02T03:49:59Z obsTimeLocal: 2019-06-01 23:49:59
>>>>> epoch: 1559447699 date_epoch_local: 2019-06-01 23:54:59 utcepoch: 
>>>>> 1559448099 date_epoch_utc: 2019-06-02 03:54:59 tz: America/New_York 
>>>>> obsTimeUtc: 2019-06-02T03:54:59Z obsTimeLocal: 2019-06-01 23:54:59
>>>>> epoch: 1559447701 date_epoch_local: 2019-06-01 23:55:01 utcepoch: 
>>>>> 1559448101 date_epoch_utc: 2019-06-02 03:55:01 tz: America/New_York 
>>>>> obsTimeUtc: 2019-06-02T03:55:01Z obsTimeLocal: 2019-06-01 23:55:01
>>>>> Number of WU records:          288
>>>>> 
>>>>> ==> 0:0:2:6_wu.txt <==
>>>>> epoch: 1559447399 date_epoch_local: 2019-06-01 23:49:59 utcepoch: 
>>>>> 1559447799 date_epoch_utc: 2019-06-02 03:49:59 tz: America/New_York 
>>>>> obsTimeUtc: 2019-06-02T03:49:59Z obsTimeLocal: 2019-06-01 23:49:59
>>>>> epoch: 1559447699 date_epoch_local: 2019-06-01 23:54:59 utcepoch: 
>>>>> 1559448099 date_epoch_utc: 2019-06-02 03:54:59 tz: America/New_York 
>>>>> obsTimeUtc: 2019-06-02T03:54:59Z obsTimeLocal: 2019-06-01 23:54:59
>>>>> epoch: 1559447999 date_epoch_local: 2019-06-01 23:59:59 utcepoch: 
>>>>> 1559448399 date_epoch_utc: 2019-06-02 03:59:59 tz: America/New_York 
>>>>> obsTimeUtc: 2019-06-02T03:59:59Z obsTimeLocal: 2019-06-01 23:59:59
>>>>> Number of WU records:          288
>>>>> 
>>>>> There again, the second query is a minute later, so one more result, but 
>>>>> with explanation...  ;-)
>>>>> 
>>>>> There is a slight difference between the 'today' and 'historical' result.
>>>>> The first result, using the 'today' API ran at 1 minute before midnight, 
>>>>> which was on the cusp of posting the 1-minute record nearest actual 
>>>>> midnight.
>>>>> The 'today' result shows two time-stamps very close to 11:55 p.m.
>>>>> Where-as the 'historical' result replaces the later ~11:55 p.m. result 
>>>>> with the ~midnight result.
>>>>> 
>>>>> Those differences are "in the noise" and inconsequential.  Even the 
>>>>> default wunderfixer --epsilon=120 will filter out such a duplicate.
>>>>> 
>>>>> I am happy that this new approach with the combined 'today' and 
>>>>> 'historical' queries is at least effective for stations west of the UTC 
>>>>> dateline.
>>>>> It means I have easily worked around half of the WU API bug.
>>>>> 
>>>>> Now to further press IBM to fix the other half of the bug...  =D
>>>>> (Even while I continue to think about ways to *cleanly* workaround the 
>>>>> bug for stations east of UTC dateline).
>>>>> 
>>>>> Regards,
>>>>> \Leon
>>>>> --
>>>>> Leon Shaner :: Dearborn, Michigan (iPad Pro)
>>>>> 
>>>>> On Jun 1, 2019, at 11:08 PM, Rod Yager <[email protected]> wrote:
>>>>> 
>>>>>> Dear Leon,
>>>>>> 
>>>>>> If WU doesn’t fix their bug, the solution is really quite simple.
>>>>>> 
>>>>>> We need to make 3 requests to WU for the data: one request for the date 
>>>>>> we are interested in, one request for the day before and one request for 
>>>>>> the day after. 
>>>>>> 
>>>>>> eg. If we are intending to upload missing data for 2019-01-01 we need to 
>>>>>> ask WU for the records it has for 2018-12-31, 2019-01-01 and 2019-01-02. 
>>>>>> 
>>>>>> One of these will have the information pertaining to the day we are 
>>>>>> interested in. 
>>>>>> 
>>>>>> We then need to filter the three responses from WU, only keeping the 
>>>>>> responses that pertain to the day we are interested in.
>>>>>> 
>>>>>> At this point, we have exactly what we want from WU and so we compare 
>>>>>> that with the local database, and upload the data that is missing in the 
>>>>>> WU record, just as we always did.
>>>>>> 
>>>>>> 
>>>>>> in your timezone (UTC-4) if you ask for data for your station the 
>>>>>> correct information will be in 
>>>>>> the same day request:  if the request is made between 00:00 and 19:59   
>>>>>> (at those times, the UTC date is the same as the date where you are )
>>>>>> the request for the next day: if the request is made between 20:00 and 
>>>>>> 23:59  (at those times, the UTC date is one day ahead the date where you 
>>>>>> are)
>>>>>> 
>>>>>> If you request information for my station (I’ve sent you the details in 
>>>>>> a PM), the correct information will be in
>>>>>> the same day request: if the request is made between 10:00 and 19:59 
>>>>>> your time  (at those times,  the UTC date is the same as the date where 
>>>>>> my station is located)
>>>>>> the request for the previous day: if the request is made between 0:00 
>>>>>> and 09:59 or between 20:00 and 23:59 your time (at those times, the UTC 
>>>>>> date is one day behind the date where my station is located)
>>>>>> 
>>>>>> Rod
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>>> On 2 Jun 2019, at 9:27 am, Leon Shaner <[email protected]> wrote:
>>>>>>> 
>>>>>>> Rod,
>>>>>>> 
>>>>>>> Thanks for testing.  Well, WU's approach is flawed, not mine, really.  
>>>>>>> :S
>>>>>>> 
>>>>>>> It means that both API's, the one I just added for 'today" and the one 
>>>>>>> from before that was for 'historical' (including today), both have the 
>>>>>>> same bug.
>>>>>>> 
>>>>>>> For now, the best workaround I can think of is to only ever run the new 
>>>>>>> wunderfixer only ever for the previous day, only ever after UTC has 
>>>>>>> rolled over midnight.   :-(
>>>>>>> E.g. when it is 2019-06-02 in UTC, you can get the right results with 
>>>>>>> wunderfixer if you ask for 2019-06-01 only.    In other words, always 
>>>>>>> delay your wunderfixer fix ups by a day, operating always on 
>>>>>>> yesterday's date (relative to UTC) after UTC has rolled over to the 
>>>>>>> next day.
>>>>>>> 
>>>>>>> Scroll to see the output of me running wunderdates on my local machine 
>>>>>>> in UTC-4 against your station in UTC+10.
>>>>>>> 
>>>>>>> Because I am asking for 2019-06-01, which is also my local date, the 
>>>>>>> logic will use the URL that queries for 'today' and instead of 
>>>>>>> returning obsTimeLocal records, it is returning obsTimeUtc records for 
>>>>>>> the requested date.  We can see that it's returning 2019-06-02 relative 
>>>>>>> to your station, even though I asked for 2019-06-01.
>>>>>>> 
>>>>>>> Sure, I could go a bit further and use a related API query to check the 
>>>>>>> timezone of your station and use date conversions to check if the date 
>>>>>>> requested is 'today' relative to the station requested, but really this 
>>>>>>> is intended to be run on the same machine as weewx, so the localtime 
>>>>>>> date should match that of the station.  It means there isn't any real 
>>>>>>> reason for me to workaround their bug.  In fact even if I did, then the 
>>>>>>> logic would just fall through to the historical data URL, which we 
>>>>>>> already know is buggy.
>>>>>>> 
>>>>>>> For now, I'll just report this to IBM a bug in the 'today' API, similar 
>>>>>>> to the bug in the 'historical' API.
>>>>>>> 
>>>>>>> $ ./wunderdates --epsilon=125 --date 2019-06-01 --station ISYDNEY155 
>>>>>>> --test --verbose | more
>>>>>>> 
>>>>>>> Using configuration file /usr/share/weewx4/weewx.conf.
>>>>>>> Weather Underground Station:   ISYDNEY155
>>>>>>> Date to check:                 2019-06-01
>>>>>>> epoch: 1559397600 date_epoch_local: 2019-06-01 10:00:00 utcepoch: 
>>>>>>> 1559398000 date_epoch_utc: 2019-06-01 14:00:00 tz: Australia/Sydney 
>>>>>>> obsTimeUtc: 2019-06-01T14:00:00Z obsTimeLocal: 2019-06-02 00:00:00
>>>>>>> epoch: 1559397900 date_epoch_local: 2019-06-01 10:05:00 utcepoch: 
>>>>>>> 1559398300 date_epoch_utc: 2019-06-01 14:05:00 tz: Australia/Sydney 
>>>>>>> obsTimeUtc: 2019-06-01T14:05:00Z obsTimeLocal: 2019-06-02 00:05:00
>>>>>>> ...
>>>>>>> 
>>>>>>> 
>>>>>>> Regards,
>>>>>>> \Leon
>>>>>>> --
>>>>>>> Leon Shaner :: Dearborn, Michigan (iPad Pro)
>>>>>>> 
>>>>>>> On Jun 1, 2019, at 6:03 PM, Rod Yager <[email protected]> wrote:
>>>>>>> 
>>>>>>>> Dear Leon,
>>>>>>>> 
>>>>>>>> Your approach is flawed. It won’t work for historical data.
>>>>>>>> 
>>>>>>>> If you run
>>>>>>>> 
>>>>>>>> wunderdates —date=2019-01-01   at 9pm your time   you will receive the 
>>>>>>>> data for 2018-12-31  (because your station is a day behind UTC at the 
>>>>>>>> time of the request, so it gives you the data for the previous day).
>>>>>>>> 
>>>>>>>> On the other hand, if you run 
>>>>>>>> 
>>>>>>>> wunderdates —date=2019-01-01   at 9am your time   you will receive the 
>>>>>>>> data for 2019-01-01  (because your station is in the same day as UTC 
>>>>>>>> at the time of the request).
>>>>>>>> 
>>>>>>>> If I do the same thing (I’m in UTC+10)
>>>>>>>> 
>>>>>>>> wunderdates —date=2019-01-01   at 9pm my time  produces the data for 
>>>>>>>> 2019-01-01 (because my station is in the same day as UTC at the time 
>>>>>>>> of the request)  but
>>>>>>>> wunderdates —date=2019-01-01   at 9am my time produces the data for 
>>>>>>>> 2019-01-02 (because my station is a day ahead of UTC at the time of 
>>>>>>>> the request) 
>>>>>>>> 
>>>>>>>> Rod
>>>>>>>> 
>>>>>>>>> On 2 Jun 2019, at 3:17 am, Leon Shaner <[email protected]> wrote:
>>>>>>>>> 
>>>>>>>>> All,
>>>>>>>>> 
>>>>>>>>> I'm testing a new approach.  Below you will find links to an updated 
>>>>>>>>> wunderdates utility that can be used to validate whether I am on the 
>>>>>>>>> right track.
>>>>>>>>> The wunderdates utility simply dumps out timestamp related records 
>>>>>>>>> from what WU returns from the query.
>>>>>>>>> 
>>>>>>>>> We're looking mainly at the obsTimeUtc and obsTimeLocal values, which 
>>>>>>>>> were demonstrated under the prior approach to be returning the wrong 
>>>>>>>>> dates when within the stations localtime +/- offset from UTC.
>>>>>>>>> 
>>>>>>>>> The new approach is to detect if the requested date is 'today' and if 
>>>>>>>>> so, use a different API URL that already assumes 'today' and will 
>>>>>>>>> hopefully not be subject to the UTC offset bugs we've been chasing 
>>>>>>>>> with the historical data API URL.
>>>>>>>>> 
>>>>>>>>> I have my crontab set to do another test approaching my UTC offset, 
>>>>>>>>> just after coming within the offset, and then again just before and 
>>>>>>>>> after midnight localtime.
>>>>>>>>> (Same test I did before, but now with the new approach in place).
>>>>>>>>> 
>>>>>>>>> Here is the utility for anyone else that wants to check out the 
>>>>>>>>> behavior:
>>>>>>>>> 
>>>>>>>>> https://github.com/UberEclectic/weewx/blob/wuapi/bin/wunderdates3
>>>>>>>>> https://github.com/UberEclectic/weewx/blob/wuapi/bin/wunderdates4
>>>>>>>>> 
>>>>>>>>> Which version you pull will depend on which base weewx you are 
>>>>>>>>> running.
>>>>>>>>> Pull the one that matches your weewx version and place it in bin, 
>>>>>>>>> next to wunderfixer, and it will take the same arguments as 
>>>>>>>>> wunderfixer.
>>>>>>>>> 
>>>>>>>>> You can just try wunderfixer as you normally would (with --apikey) 
>>>>>>>>> and then run wunderdates(3 or 4) with exact same arguments to be able 
>>>>>>>>> to see what actual timestamps WU is sending back for the date queried.
>>>>>>>>> Parameters like --epsilon don't have any effect in the case of 
>>>>>>>>> wunderdates, but I left it there so you don't have to change options 
>>>>>>>>> when running the util to get the debug output.
>>>>>>>>> 
>>>>>>>>> Regards,
>>>>>>>>> \Leon
>>>>>>>>> --
>>>>>>>>> Leon Shaner :: Dearborn, Michigan (iPad Pro)
>>>>>>>>> 
>>>>>>>>> On May 30, 2019, at 12:40 AM, Leon Shaner <[email protected]> wrote:
>>>>>>>>> 
>>>>>>>>>> Rod,
>>>>>>>>>> Thanks again for this.
>>>>>>>>>> 
>>>>>>>>>> Since the in-progress version of wunderfixer doesn't really show you 
>>>>>>>>>> the dates that come back from WU, I have written a tool just to 
>>>>>>>>>> debug the dates.
>>>>>>>>>> 
>>>>>>>>>> The command-line input and basing of defaults on weewx.conf works 
>>>>>>>>>> the same as wunderfixer, except it doesn't look at your DB at all.  
>>>>>>>>>> It only prints out datestamps in various incarnations coming back 
>>>>>>>>>> from WU and as compared to your system's localtime.
>>>>>>>>>> 
>>>>>>>>>> It would be helpful to see the "wunderdates" output at times like 
>>>>>>>>>> you've shown below, a la before and after your localtime rolls 
>>>>>>>>>> around to UTC midnight.
>>>>>>>>>> 
>>>>>>>>>> Since you are at UTC + 10, another interesting time would be 11+ 
>>>>>>>>>> hours on either side of UTC midnight, in addition to within 9 or 
>>>>>>>>>> less hours.  This is just to make sure we're covering all the corner 
>>>>>>>>>> cases.
>>>>>>>>>> 
>>>>>>>>>> Gary reported a difference for stations that are east vs. west of 
>>>>>>>>>> GMT, and I expect we're really chasing the same bug in that there is 
>>>>>>>>>> some bad math WU is doing based on UTC offset, but since an offset 
>>>>>>>>>> can be +/-, the effects go in opposite directions date-wise, 
>>>>>>>>>> depending on which side of the UTC dateline your station is located.
>>>>>>>>>> 
>>>>>>>>>> At least that is what I surmise may be happening, but the 
>>>>>>>>>> wunderdates utility should shed light one way or the other.  =D
>>>>>>>>>> 
>>>>>>>>>> The wunderdates utility is available at the links below.
>>>>>>>>>> 
>>>>>>>>>> https://github.com/UberEclectic/weewx/blob/wuapi/bin/wunderdates3
>>>>>>>>>> https://github.com/UberEclectic/weewx/blob/wuapi/bin/wunderdates4
>>>>>>>>>> 
>>>>>>>>>> Which version you pull will depend on which base weewx you are 
>>>>>>>>>> running.
>>>>>>>>>> Pull the one that matches your weewx version and place it in bin, 
>>>>>>>>>> next to wunderfixer, and it will take the same arguments as 
>>>>>>>>>> wunderfixer.
>>>>>>>>>> 
>>>>>>>>>> You can just try wunderfixer as you normally would (with --apikey) 
>>>>>>>>>> and then run wunderdates(3 or 4) with exact same arguments to be 
>>>>>>>>>> able to see what actual timestamps WU is sending back for the date 
>>>>>>>>>> queried.
>>>>>>>>>> Parameters like --epsilon don't have any effect in the case of 
>>>>>>>>>> wunderdates, but I left it there so you don't have to change options 
>>>>>>>>>> when running the util to get the debug output.
>>>>>>>>>> 
>>>>>>>>>> What I've been doing is saving the output to files for use with 
>>>>>>>>>> sdiff (side-by-side) diff.
>>>>>>>>>> Or you can just compare the head and tail of each file individually.
>>>>>>>>>> 
>>>>>>>>>> Example for my system before and after my local time on 5-28 once it 
>>>>>>>>>> was at/after 8 p.m. here, which is within 4 hours of UTC midnight (I 
>>>>>>>>>> am at UTC-4).
>>>>>>>>>> 
>>>>>>>>>> This output is optimized for screen widths 203 or wider.  Sorry.  :S
>>>>>>>>>> Mainly the last two data fields in the output tell what we need to 
>>>>>>>>>> know.
>>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> pi@nixie:/var/tmp $ head -n 3 59:19:28:5_wu.txt  0:20:28:5_wu.txt
>>>>>>>>>> ==> 59:19:28:5_wu.txt <==
>>>>>>>>>> Using configuration file /usr/share/weewx4/weewx.conf.
>>>>>>>>>> epoch: 1559016299 date_epoch_local: 2019-05-28 00:04:59 utcepoch: 
>>>>>>>>>> 1559016699 date_epoch_utc: 2019-05-28 04:04:59 tz: America/New_York 
>>>>>>>>>> obsTimeUtc: 2019-05-28T04:04:59Z obsTimeLocal: 2019-05-28 00:04:59
>>>>>>>>>> epoch: 1559016599 date_epoch_local: 2019-05-28 00:09:59 utcepoch: 
>>>>>>>>>> 1559016999 date_epoch_utc: 2019-05-28 04:09:59 tz: America/New_York 
>>>>>>>>>> obsTimeUtc: 2019-05-28T04:09:59Z obsTimeLocal: 2019-05-28 00:09:59
>>>>>>>>>> 
>>>>>>>>>> ==> 0:20:28:5_wu.txt <==
>>>>>>>>>> Using configuration file /usr/share/weewx4/weewx.conf.
>>>>>>>>>> epoch: 1558929899 date_epoch_local: 2019-05-27 00:04:59 utcepoch: 
>>>>>>>>>> 1558930299 date_epoch_utc: 2019-05-27 04:04:59 tz: America/New_York 
>>>>>>>>>> obsTimeUtc: 2019-05-27T04:04:59Z obsTimeLocal: 2019-05-27 00:04:59
>>>>>>>>>> epoch: 1558930199 date_epoch_local: 2019-05-27 00:09:59 utcepoch: 
>>>>>>>>>> 1558930599 date_epoch_utc: 2019-05-27 04:09:59 tz: America/New_York 
>>>>>>>>>> obsTimeUtc: 2019-05-27T04:09:59Z obsTimeLocal: 2019-05-27 00:09:59
>>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> pi@nixie:/var/tmp $ tail -n 3 59:19:28:5_wu.txt  0:20:28:5_wu.txt
>>>>>>>>>> ==> 59:19:28:5_wu.txt <==
>>>>>>>>>> epoch: 1559087699 date_epoch_local: 2019-05-28 19:54:59 utcepoch: 
>>>>>>>>>> 1559088099 date_epoch_utc: 2019-05-28 23:54:59 tz: America/New_York 
>>>>>>>>>> obsTimeUtc: 2019-05-28T23:54:59Z obsTimeLocal: 2019-05-28 19:54:59
>>>>>>>>>> epoch: 1559087702 date_epoch_local: 2019-05-28 19:55:02 utcepoch: 
>>>>>>>>>> 1559088102 date_epoch_utc: 2019-05-28 23:55:02 tz: America/New_York 
>>>>>>>>>> obsTimeUtc: 2019-05-28T23:55:02Z obsTimeLocal: 2019-05-28 19:55:02
>>>>>>>>>> Number of WU records:          240
>>>>>>>>>> 
>>>>>>>>>> ==> 0:20:28:5_wu.txt <==
>>>>>>>>>> epoch: 1559015699 date_epoch_local: 2019-05-27 23:54:59 utcepoch: 
>>>>>>>>>> 1559016099 date_epoch_utc: 2019-05-28 03:54:59 tz: America/New_York 
>>>>>>>>>> obsTimeUtc: 2019-05-28T03:54:59Z obsTimeLocal: 2019-05-27 23:54:59
>>>>>>>>>> epoch: 1559015999 date_epoch_local: 2019-05-27 23:59:59 utcepoch: 
>>>>>>>>>> 1559016399 date_epoch_utc: 2019-05-28 03:59:59 tz: America/New_York 
>>>>>>>>>> obsTimeUtc: 2019-05-28T03:59:59Z obsTimeLocal: 2019-05-27 23:59:59
>>>>>>>>>> Number of WU records:          288
>>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> But after my system rolled over midnight localtime, results returned 
>>>>>>>>>> to the correct dates when asking for 5-28:
>>>>>>>>>> 
>>>>>>>>>> pi@nixie:/var/tmp $ head -3 0:0:29:5_wu.txt
>>>>>>>>>> Using configuration file /usr/share/weewx4/weewx.conf.
>>>>>>>>>> epoch: 1559016299 date_epoch_local: 2019-05-28 00:04:59 utcepoch: 
>>>>>>>>>> 1559016699 date_epoch_utc: 2019-05-28 04:04:59 tz: America/New_York 
>>>>>>>>>> obsTimeUtc: 2019-05-28T04:04:59Z obsTimeLocal: 2019-05-28 00:04:59
>>>>>>>>>> epoch: 1559016599 date_epoch_local: 2019-05-28 00:09:59 utcepoch: 
>>>>>>>>>> 1559016999 date_epoch_utc: 2019-05-28 04:09:59 tz: America/New_York 
>>>>>>>>>> obsTimeUtc: 2019-05-28T04:09:59Z obsTimeLocal: 2019-05-28 00:09:59
>>>>>>>>>> 
>>>>>>>>>> pi@nixie:/var/tmp $ tail -3 0:0:29:5_wu.txt
>>>>>>>>>> epoch: 1559102099 date_epoch_local: 2019-05-28 23:54:59 utcepoch: 
>>>>>>>>>> 1559102499 date_epoch_utc: 2019-05-29 03:54:59 tz: America/New_York 
>>>>>>>>>> obsTimeUtc: 2019-05-29T03:54:59Z obsTimeLocal: 2019-05-28 23:54:59
>>>>>>>>>> epoch: 1559102399 date_epoch_local: 2019-05-28 23:59:59 utcepoch: 
>>>>>>>>>> 1559102799 date_epoch_utc: 2019-05-29 03:59:59 tz: America/New_York 
>>>>>>>>>> obsTimeUtc: 2019-05-29T03:59:59Z obsTimeLocal: 2019-05-28 23:59:59
>>>>>>>>>> Number of WU records:          288
>>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> Regards,
>>>>>>>>>> \Leon
>>>>>>>>>> --
>>>>>>>>>> Leon Shaner :: Dearborn, Michigan (iPad Pro)
>>>>>>>>>> 
>>>>>>>>>> On May 29, 2019, at 8:53 PM, Rod Yager <[email protected]> wrote:
>>>>>>>>>> 
>>>>>>>>>>> Further to this, it has now rolled past 10am here, so the local 
>>>>>>>>>>> date is now the same as the UTC date. (ie. local time May 30 2019 
>>>>>>>>>>> 10:40 AM = May 30 2019 00:40 AM UTC).
>>>>>>>>>>> 
>>>>>>>>>>> Now I get:
>>>>>>>>>>> 
>>>>>>>>>>> ./wunderfixer --verbose --date=2019-05-29 --epsilon=125
>>>>>>>>>>> 
>>>>>>>>>>> Using configuration file /home/weewx/weewx.conf.
>>>>>>>>>>> 
>>>>>>>>>>> Using database binding 'wx_binding', which is bound to database 
>>>>>>>>>>> 'archive_mysql'
>>>>>>>>>>> 
>>>>>>>>>>> Weather Underground Station:   xxxxx
>>>>>>>>>>> 
>>>>>>>>>>> Date to check:                 2019-05-29
>>>>>>>>>>> 
>>>>>>>>>>> Number of archive records:     288
>>>>>>>>>>> 
>>>>>>>>>>> Number of WU records:          288
>>>>>>>>>>> 
>>>>>>>>>>> Number of missing records:     0
>>>>>>>>>>> 
>>>>>>>>>>> [root@moses bin]# ./wunderfixer --verbose --date=2019-05-30 
>>>>>>>>>>> --epsilon=125
>>>>>>>>>>> 
>>>>>>>>>>> Using configuration file /home/weewx/weewx.conf.
>>>>>>>>>>> 
>>>>>>>>>>> Using database binding 'wx_binding', which is bound to database 
>>>>>>>>>>> 'archive_mysql'
>>>>>>>>>>> 
>>>>>>>>>>> Weather Underground Station:   xxxxxx
>>>>>>>>>>> 
>>>>>>>>>>> Date to check:                 2019-05-30
>>>>>>>>>>> 
>>>>>>>>>>> Number of archive records:     128
>>>>>>>>>>> 
>>>>>>>>>>> Number of WU records:          127
>>>>>>>>>>> 
>>>>>>>>>>> Number of missing records:     1
>>>>>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>>> This means that WU is now actually providing the records for the 
>>>>>>>>>>> date requested, rather than the day after the requested date. 
>>>>>>>>>>> So it seems that what is happening is that WU is determining 
>>>>>>>>>>> whether or not the current date at the station location is the same 
>>>>>>>>>>> as the UTC date.
>>>>>>>>>>> If it is, it returns the data for the date as in the request. But 
>>>>>>>>>>> if the local date is different, it makes an (unwanted) adjustment 
>>>>>>>>>>> for the date difference.
>>>>>>>>>>> 
>>>>>>>>>>> Rod 
>>>>>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>>>> On Thursday, May 30, 2019 at 9:29:16 AM UTC+10, Leon Shaner wrote:
>>>>>>>>>>>> Hi, Rod,
>>>>>>>>>>>> 
>>>>>>>>>>>> Yes and thanks for adding yet another confirmation of the issue.  
>>>>>>>>>>>> =D
>>>>>>>>>>>> 
>>>>>>>>>>>> I can show that if I do the query within X hours of my offset of 
>>>>>>>>>>>> UTC, what actually happens is they report 288 records from the day 
>>>>>>>>>>>> PRIOR to the one I am asking about.
>>>>>>>>>>>> For example, I ask for 20190528 and they give me records for 
>>>>>>>>>>>> 20190527, so *that* is why wunderfixer "thinks" it needs to 
>>>>>>>>>>>> re-upload everything.
>>>>>>>>>>>> 
>>>>>>>>>>>> I am in contact with IBM about it and have shown them irrefutable 
>>>>>>>>>>>> proof of the issue.
>>>>>>>>>>>> They didn't respond back yet, which I expect is because the proof 
>>>>>>>>>>>> was irrefutable.  Ha!  ;-)
>>>>>>>>>>>> 
>>>>>>>>>>>> I expect that they're investigating and would rather respond from 
>>>>>>>>>>>> a position of understanding, or with any luck maybe even a quick 
>>>>>>>>>>>> fix.  =D
>>>>>>>>>>>> 
>>>>>>>>>>>> I meant to follow-up with IBM again this morning, but got waylaid, 
>>>>>>>>>>>> so I'll do that now.
>>>>>>>>>>>> Thanks again, and for the reminder.  =D 
>>>>>>>>>>>> 
>>>>>>>>>>>> Regards,
>>>>>>>>>>>> \Leon
>>>>>>>>>>>> --
>>>>>>>>>>>> Leon Shaner :: Dearborn, Michigan (iPad Pro)
>>>>>>>>>>>> 
>>>>>>>>>>>> On May 29, 2019, at 6:14 PM, Rod Yager <[email protected]> wrote:
>>>>>>>>>>>> 
>>>>>>>>>>>>> There is definitely a time zone issue. I am in the Sydney 
>>>>>>>>>>>>> Australia timezone (UTC +10 hours).
>>>>>>>>>>>>> 
>>>>>>>>>>>>> It is currently 8am local time on May 30, 2019.   (10pm May 29, 
>>>>>>>>>>>>> 2019 UTC)
>>>>>>>>>>>>> 
>>>>>>>>>>>>> If I execute
>>>>>>>>>>>>> 
>>>>>>>>>>>>> ./wunderfixer --verbose --date=2019-05-29 --epsilon=125
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> I get
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Using configuration file /home/weewx/weewx.conf.
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Using database binding 'wx_binding', which is bound to database 
>>>>>>>>>>>>> 'archive_mysql'
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Weather Underground Station:   xxxxxxx
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Date to check:                 2019-05-29
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Number of archive records:     288
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Number of WU records:          97
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Number of missing records:     288
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Now WU actually has 288 records for 2019-05-29.
>>>>>>>>>>>>> 
>>>>>>>>>>>>> But it only has 97 records for 2019-05-30.
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> So it is clear that wunderfixer is downloading the record data 
>>>>>>>>>>>>> for 2019-05-30 from WeatherUnderground and trying to match them 
>>>>>>>>>>>>> with the local records for 2019-30-29.
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Of course, they all mismatch, and so wunderfixer concludes that 
>>>>>>>>>>>>> it must upload all the data for 2019-05-29.
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Hope this narrows down the search for a solution.
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Rod
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>>> On Monday, May 27, 2019 at 9:35:25 PM UTC+10, Leon Shaner wrote:
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> On May 27, 2019, at 12:12 AM, gjr80 <[email protected]> wrote:
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>> On Monday, 27 May 2019 13:16:53 UTC+10, Leon Shaner wrote:
>>>>>>>>>>>>>>>> [snip]
>>>>>>>>>>>>>>>> If you can see any shorter paths to a more reliable outcome 
>>>>>>>>>>>>>>>> than I have achieved so far, then you know know know I will be 
>>>>>>>>>>>>>>>> very grateful.  =D
>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>> I am not sure what local/UTC issue you refer to. When I do a 
>>>>>>>>>>>>>>> api.weather.com/v2/pws/history query on a station to the east 
>>>>>>>>>>>>>>> of Greenwich I am returned all records for the date specified 
>>>>>>>>>>>>>>> (eg 20190525 gives me all records for 25 May 2019), each record 
>>>>>>>>>>>>>>> contains an epoch timestamp which is correct and consistent 
>>>>>>>>>>>>>>> with 25 May 2019. Everything is as I would expect. However, 
>>>>>>>>>>>>>>> when I perform the same query on a station to the west of 
>>>>>>>>>>>>>>> Greenwich I am returned records for the day before the date 
>>>>>>>>>>>>>>> specified (ie 20190525 gives me all records for 24 May 2019 not 
>>>>>>>>>>>>>>> 25 May 2019), again each record contains an epoch timestamp but 
>>>>>>>>>>>>>>> the timestamp is for the previous day Ie 24 May 2019. I have 
>>>>>>>>>>>>>>> checked a number of data records in the stations history table 
>>>>>>>>>>>>>>> and WU is definitely returning the midnight to midnight data 
>>>>>>>>>>>>>>> for the day before. I have confirmed this behaviour with a 
>>>>>>>>>>>>>>> number of stations both east and west of Greenwich.
>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>> I don't think there is a local/UTC time issue, I think WU is 
>>>>>>>>>>>>>>> having some implementation issues and for stations west of 
>>>>>>>>>>>>>>> Greenwich they are returning the wrong day of data.
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> Thanks, Gary!  This was all very helpful.
>>>>>>>>>>>>>> In addition to what you've described across the east vs west of 
>>>>>>>>>>>>>> GMT, I get similar behavior if I am within X hours of my local 
>>>>>>>>>>>>>> UTC offset when querying my own station.
>>>>>>>>>>>>>> Last night as soon as localtime rolled over midnight, the 
>>>>>>>>>>>>>> queries for the previous day were correct.
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> --Leon
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>> Gary
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> -- 
>>>>>>>>>>>>> You received this message because you are subscribed to the 
>>>>>>>>>>>>> Google Groups "weewx-user" group.
>>>>>>>>>>>>> To unsubscribe from this group and stop receiving emails from it, 
>>>>>>>>>>>>> send an email to [email protected].
>>>>>>>>>>>>> To view this discussion on the web visit 
>>>>>>>>>>>>> https://groups.google.com/d/msgid/weewx-user/683a28af-35e4-474e-95a0-f684b9926af0%40googlegroups.com.
>>>>>>>>>>>>> For more options, visit https://groups.google.com/d/optout.
>>>>>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>>> -- 
>>>>>>>>>>> You received this message because you are subscribed to the Google 
>>>>>>>>>>> Groups "weewx-user" group.
>>>>>>>>>>> To unsubscribe from this group and stop receiving emails from it, 
>>>>>>>>>>> send an email to [email protected].
>>>>>>>>>>> To view this discussion on the web visit 
>>>>>>>>>>> https://groups.google.com/d/msgid/weewx-user/3570f548-caf3-43e8-858d-1b4d8c87d84a%40googlegroups.com.
>>>>>>>>>>> For more options, visit https://groups.google.com/d/optout.
>>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> -- 
>>>>>>>>>> You received this message because you are subscribed to the Google 
>>>>>>>>>> Groups "weewx-user" group.
>>>>>>>>>> To unsubscribe from this group and stop receiving emails from it, 
>>>>>>>>>> send an email to [email protected].
>>>>>>>>>> To view this discussion on the web visit 
>>>>>>>>>> https://groups.google.com/d/msgid/weewx-user/388426A6-12D0-45FC-AFF2-E6EB532B61DC%40isylum.org.
>>>>>>>>>> For more options, visit https://groups.google.com/d/optout.
>>>>>>>>> 
>>>>>>>>> 
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>>>>>>>> 
>>>>>>>> 
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>>>>>>> 
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>>>>>> 
>>>>>> 
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>>>>> 
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>>>>> For more options, visit https://groups.google.com/d/optout.
>>>> 
>>>> 
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>>> 
>>> 
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>> 
>> 
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> 
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