On 04 September 2007 16:03, Larry Hall (Cygwin) wrote:
> lei chao wrote:
>> Hi,
>>
>> I just installed cygwin 1.5.24-2 on windows 2003. To test some
>> timezone issue, I set system time to Nov 2, 2007. Then if I set
>> TZ to PST8PDT, date command reports one hour behind the correct time.
>> but if I unset TZ, date works well. And it looks like date can
>> work with PST8PDT correctly in 2006 instead of 2007.
>
> <snip>
>
> Try setting the date to 11/21 and try again. IIRC, DST extends an extra
> 3 weeks this year in the US. Don't know why it would "work" without TZ
> set though. Sounds like a Windows problem.
'doze plays incredibly silly games with DST. It actually realigns the epoch
by an hour when you enter or leave DST, so all your file creation/modified
times shift by an hour.
While this could even be helpful in the case of running a 'make' job over a
DST change, it's pretty much in line with the POMS.
cheers,
DaveK
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