On Wed, 8 Apr 2015 12:34:08 -0500, Kirk Wolf wrote:

>Here's a pretty good IBM techdoc on the subject:
>
>https://www-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/WP102081
> 
Apparently my Linux system doesn't know about it yet.  Does yours?

528 $ touch -t1206301200 a
529 $ touch -t1207011200 b
530 $ touch -t1506301200 c
531 $ touch -t1507011200 d
532 $ 
532 $ TZ=right/America/Denver ls --full-time ?
-rw-r--r-- 1 paulgilm paulgilm 0 2012-06-30 11:59:36.000000000 -0600 a
-rw-r--r-- 1 paulgilm paulgilm 0 2012-07-01 11:59:35.000000000 -0600 b
-rw-r--r-- 1 paulgilm paulgilm 0 2015-06-30 11:59:35.000000000 -0600 c
-rw-r--r-- 1 paulgilm paulgilm 0 2015-07-01 11:59:35.000000000 -0600 d

... I guess we need to wait for a tzdata update.  Cygwin same (I had to
hack it a little).

-- gil




>Kirk Wolf
>Dovetailed Technologies
>http://dovetail.com
>
>On Wed, Apr 8, 2015 at 11:27 AM, Paul Gilmartin <
>[email protected]> wrote:
>
>> On Wed, 8 Apr 2015 21:41:48 +0530, zos reader wrote:
>> >
>> >We are running zOS1.13 on z114 box. As we aware Leap Second is to happen
>> on
>> >30th June. Will there be any impact, if yes do we require any changes to
>> be
>> >done prior to this.
>> >Please guide me
>> >
>> See OA05136 (Mine!)
>>
>> Probably no impact given that z/OS makes user processes nondispatchable
>> during
>> the leap second.  (Well, 1/3600 the impact of shutting dowh for an hour
>> every Fall.)
>>
>> The duration of a process spanning the Leap Second shown by the difference
>> between two STCK values will appear.
>>
>> We enabled Leap Seconds many years ago, then disabled them shortly after
>> because vendor products were inconsistent in their treatment of CVTLSO
>> (Our systems programmer names SMF and RMF.)  But you're already enduring
>> that; it will get only 4% worse.
>>
>> And IBM refuses to document STCKCONV's treatment of CVTLSO.
>>
>> -- gil
>>
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