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Re: 64-bit Heimdal/Cygwin, clock, daylight savings conundrum
- From: ht at inf dot ed dot ac dot uk (Henry S. Thompson)
- To: cygwin at cygwin dot com
- Date: Wed, 09 Apr 2014 15:20:27 +0100
- Subject: Re: 64-bit Heimdal/Cygwin, clock, daylight savings conundrum
- Authentication-results: sourceware.org; auth=none
- References: <f5ba9bu28gl dot fsf at troutbeck dot inf dot ed dot ac dot uk> <f5b61mi26vd dot fsf at troutbeck dot inf dot ed dot ac dot uk> <1142907573 dot 20140409172230 at yandex dot ru>
Andrey Repin writes:
>> I'm in the UK, where summer time started 10 days ago.
>> My Windows 8.1 laptop correctly gained an hour at that time.
>> Yesterday it gained _another_ hour :-(.
> This is suspicious. I hope, there was no changes to DST dates in UK recently?
No, moved by one day from 31/3 in 2013 to 30/3 just now.
> How does it appear to you?
> I.e. if your time zone in Windows set correctly, what time the system clock
> show, and how it is converted to UTC?
Windows thinks I'm in (UTC) Dublin, Edinburgh, Lisbon, London, which
is correct. Windows shows the correct time, as does Cygwin 'date'
> Do you have real time synchronization set up?
Yes, that's how I got the time fixed. I'm running ntpd from the
> Could it be a server issue at this point? Is it in the same timezone, as
No -- same timezone, we're all in the same city, Edinburgh. I'm not
aware of anyone else with this problem.
>> So I went to work on what I thought was the underlying problem, the
>> mistaken time. Fixed that, eventually, by fiddling with BIOS clock
>> and its relation to the system clock.
>> But the kinit problem didn't go away.
>> However, _if_ I set the time one hour forward again, kinit succeeds.
>> True weirdness follows. I have 32-bit install as well (for xemacs)
>> (Cygcheck attached to previous message). Problem does _not_ manifest
>> itself there. kinit works _regardless_ of what the windows clock
Note that I can't reproduce this anymore :-(. That is, 32-bit and
64-bit now both require the time to be one hour forward of the correct
time for kinit to work.
Henry S. Thompson, School of Informatics, University of Edinburgh
10 Crichton Street, Edinburgh EH8 9AB, SCOTLAND -- (44) 131 650-4440
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