Hi Maxim, Check http://joshowens.me/dealing-with-timezones-in-javascript/. It may be in use for you.
Martin Grigorov Wicket Training and Consulting https://twitter.com/mtgrigorov On Tue, Nov 11, 2014 at 9:39 AM, Maxim Solodovnik <[email protected]> wrote: > OK, will try to do it after ApacheConEU > Thanks for the review! > > On 11 November 2014 14:33, Martin Grigorov <[email protected]> wrote: > > > I find the knowledge of the client timezone generally useful! > > If you improve the points in my last mail and integrate it > > in wicket-browser-info.js then it has better chance of being merged ;-) > > > > Martin Grigorov > > Wicket Training and Consulting > > https://twitter.com/mtgrigorov > > > > On Tue, Nov 11, 2014 at 10:28 AM, Maxim Solodovnik <[email protected] > > > > wrote: > > > > > you are right :( > > > I can improve it if it worth so > > > > > > The idea was to get client timezone rulez using JS: the exact DST > switch > > > start/end date/time > > > send this data to the server and then find Java timezone with best > match > > > > > > > > > On 11 November 2014 14:24, Martin Grigorov <[email protected]> > wrote: > > > > > > > Hi Maxim, > > > > > > > > > > > > > > https://github.com/solomax/tzdetect/blob/master/src/main/webapp/tzdetect.js > > > > is not very usable in its current state. > > > > My issues with it: > > > > - no documentation > > > > - no tests > > > > - uses short named variables and method names (thus hard to follow) > > > > - ... > > > > > > > > I have forked it so I can use it as inspiration if I need it later. > > > > Feel free to remove it. > > > > > > > > Thanks! > > > > > > > > Martin Grigorov > > > > Wicket Training and Consulting > > > > https://twitter.com/mtgrigorov > > > > > > > > On Mon, Nov 10, 2014 at 6:02 PM, Maxim Solodovnik < > > [email protected]> > > > > wrote: > > > > > > > > > @Martin > > > > > > > > > > were you able to take a look at this code? > > > > > Is it look useful? Or I can remove it? > > > > > > > > > > On 23 September 2014 00:54, Maxim Solodovnik <[email protected] > > > > > > wrote: > > > > > > > > > > > Finally was able to create prototype: > > > > > https://github.com/solomax/tzdetect > > > > > > Maybe you can find it (or parts of it) usable > > > > > > > > > > > > On 3 September 2014 12:25, Maxim Solodovnik < > [email protected]> > > > > > wrote: > > > > > > > > > > > >> I believe if TZ rulez will be detected on client side, and TZ > > itself > > > > on > > > > > >> server side it might find user TZ good enough. (due to TZ list > > with > > > > > rulez > > > > > >> will be maintained by java vendor, not JS library itself) > > > > > >> will try to modify the code and provide quickstart > > > > > >> > > > > > >> > > > > > >> On 3 September 2014 18:18, Martin Grigorov < > [email protected]> > > > > > wrote: > > > > > >> > > > > > >>> see https://github.com/moment/moment-timezone/issues/55 > > > > > >>> if Moment.js cannot do it then I don't think we will do it > > > > > >>> > > > > > >>> Martin Grigorov > > > > > >>> Wicket Training and Consulting > > > > > >>> https://twitter.com/mtgrigorov > > > > > >>> > > > > > >>> > > > > > >>> On Wed, Sep 3, 2014 at 12:13 PM, Maxim Solodovnik < > > > > > [email protected]> > > > > > >>> wrote: > > > > > >>> > > > > > >>> > there seems to be timezones with more than 1 dst start per > year > > > :( > > > > > >>> > code should be updated to reflect this :( > > > > > >>> > > > > > > >>> > > > > > > >>> > On 3 September 2014 16:11, Maxim Solodovnik < > > > [email protected]> > > > > > >>> wrote: > > > > > >>> > > > > > > >>> > > was tested against multiple Time zones listed here: > > > > > >>> > > http://www.worldtimezone.com/daylight.html and own TZ > > > > > >>> (Asia/Novosibirsk) > > > > > >>> > > > > > > > >>> > > > > > > > >>> > > On 3 September 2014 16:09, Maxim Solodovnik < > > > > [email protected]> > > > > > >>> > wrote: > > > > > >>> > > > > > > > >>> > >> here is the JS code > > > > > >>> > https://gist.github.com/solomax/e86cc77694d67120b8f5 > > > > > >>> > >> to get DST start date/time (if any) > > > > > >>> > >> only minute offset was not tested due to impossibili to > set > > TZ > > > > > >>> "Chatham > > > > > >>> > >> Island" on my Ubuntu) > > > > > >>> > >> > > > > > >>> > >> similar code can be added to get DST end date/time > > > > > >>> > >> > > > > > >>> > >> the code also might need to be "polished" a little > > > > > >>> > >> > > > > > >>> > >> > > > > > >>> > >> On 3 September 2014 19:59, Martin Grigorov < > > > > [email protected]> > > > > > >>> > wrote: > > > > > >>> > >> > > > > > >>> > >>> On Sep 3, 2014 10:39 AM, "Maxim Solodovnik" < > > > > > [email protected]> > > > > > >>> > >>> wrote: > > > > > >>> > >>> > > > > > > >>> > >>> > Actually my code can be extended to get > > > > > >>> > >>> > 1) if TZ has DST or not > > > > > >>> > >>> > 2) what month DST happening > > > > > >>> > >>> > 3) the day of month DST happening > > > > > >>> > >>> > 4) hour of day DST happening > > > > > >>> > >>> > > > > > > >>> > >>> > I believe after all this info is available the list of > > time > > > > > zones > > > > > >>> > with > > > > > >>> > >>> > certain offset can be reduced to better match current > > user > > > > TZ. > > > > > >>> > >>> > I can provide sample JS code for 1-4 above > > > > > >>> > >>> > > > > > >>> > >>> This will increase the chance to include it ! ;-) > > > > > >>> > >>> > > > > > >>> > >>> > > > > > > >>> > >>> > > > > > > >>> > >>> > On 3 September 2014 14:22, Martin Grigorov < > > > > > [email protected] > > > > > >>> > > > > > > >>> > >>> wrote: > > > > > >>> > >>> > > > > > > >>> > >>> > > Hi Maxim, > > > > > >>> > >>> > > > > > > > >>> > >>> > > Can you please provide more information how your code > > > > solves > > > > > >>> the > > > > > >>> > >>> problem ? > > > > > >>> > >>> > > AFAIU Robert explains that Wicket's code properly > > detects > > > > the > > > > > >>> > >>> timezone > > > > > >>> > >>> > > offset, but since there are many timezone ids for a > > given > > > > > >>> offset it > > > > > >>> > >>> is > > > > > >>> > >>> not > > > > > >>> > >>> > > easy to detect the correct DST from the offset. > > > > > >>> > >>> > > In your code I don't see anything that should provide > > the > > > > > >>> missing > > > > > >>> > >>> timezone > > > > > >>> > >>> > > id. > > > > > >>> > >>> > > Or I am missing something ? > > > > > >>> > >>> > > > > > > > >>> > >>> > > Martin Grigorov > > > > > >>> > >>> > > Wicket Training and Consulting > > > > > >>> > >>> > > https://twitter.com/mtgrigorov > > > > > >>> > >>> > > > > > > > >>> > >>> > > > > > > > >>> > >>> > > On Wed, Sep 3, 2014 at 9:44 AM, Maxim Solodovnik < > > > > > >>> > >>> [email protected]> > > > > > >>> > >>> > > wrote: > > > > > >>> > >>> > > > > > > > >>> > >>> > > > Hello All, > > > > > >>> > >>> > > > > > > > > >>> > >>> > > > Some time ago we had user query [1] claiming wicket > > > based > > > > > TZ > > > > > >>> > >>> detection is > > > > > >>> > >>> > > > not accurate. > > > > > >>> > >>> > > > I believe the detection can be enhanced: DST rules > > can > > > be > > > > > >>> > detected > > > > > >>> > >>> using > > > > > >>> > >>> > > JS > > > > > >>> > >>> > > > code and taken into account while TZ guessing > > > > > >>> > >>> > > > > > > > > >>> > >>> > > > here is the example of JS code determining month TZ > > > > switch > > > > > is > > > > > >>> > >>> happening: > > > > > >>> > >>> > > > [2] line 50 > > > > > >>> > >>> > > > > > > > > >>> > >>> > > > Maybe it worth to implement something like this in > > > > Wicket? > > > > > >>> > >>> > > > > > > > > >>> > >>> > > > [1] http://markmail.org/message/v7vmfburg4zrtizk > > > > > >>> > >>> > > > [2] > > > > > >>> > >>> > > > > > > > > >>> > >>> > > > > > > > > >>> > >>> > > > > > > > >>> > >>> > > > > > >>> > >>> > > > > > >>> > > > > > > >>> > > > > > > > > > > > > > > > https://svn.apache.org/viewvc/openmeetings/branches/3.0.x/src/main/webapp/js/openmeetings_functions.js?revision=1562780&view=markup > > > > > >>> > >>> > > > > > > > > >>> > >>> > > > -- > > > > > >>> > >>> > > > WBR > > > > > >>> > >>> > > > Maxim aka solomax > > > > > >>> > >>> > > > > > > > > >>> > >>> > > > > > > > >>> > >>> > > > > > > >>> > >>> > > > > > > >>> > >>> > > > > > > >>> > >>> > -- > > > > > >>> > >>> > WBR > > > > > >>> > >>> > Maxim aka solomax > > > > > >>> > >>> > > > > > >>> > >> > > > > > >>> > >> > > > > > >>> > >> > > > > > >>> > >> -- > > > > > >>> > >> WBR > > > > > >>> > >> Maxim aka solomax > > > > > >>> > >> > > > > > >>> > > > > > > > >>> > > > > > > > >>> > > > > > > > >>> > > -- > > > > > >>> > > WBR > > > > > >>> > > Maxim aka solomax > > > > > >>> > > > > > > > >>> > > > > > > >>> > > > > > > >>> > > > > > > >>> > -- > > > > > >>> > WBR > > > > > >>> > Maxim aka solomax > > > > > >>> > > > > > > >>> > > > > > >> > > > > > >> > > > > > >> > > > > > >> -- > > > > > >> WBR > > > > > >> Maxim aka solomax > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > WBR > > > > > > Maxim aka solomax > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > WBR > > > > > Maxim aka solomax > > > > > > > > > > > > > > > > > > > > > -- > > > WBR > > > Maxim aka solomax > > > > > > > > > -- > WBR > Maxim aka solomax >
