[wpkg-users] Do file time checks take daylight savings time into account?

Stefan Pendl stefan.pendl.71 at gmail.com
Sun Oct 30 19:32:36 CET 2011


> 
> This is a very interesting finding.
> Especially since the time zone seems not have changed but 
> rather the file 
> modification date returned by the OS as of today is different today.
> 
> So
> Sun Oct 23 18:05:07 UTC+0200 2011
> seems have changed to
> Sun Oct 23 17:05:07 UTC+0200 2011
> 
> Especially it puzzles me why it's not returning
> Sun Oct 23 17:05:07 UTC+0100 2011
> 
> now which would be the same time normalized to time zones.
> 
> Not sure if there is any API to deal with this issue. I will have to 
> investigate. It might be able to detect whether a data is in 
> DST but this 
> introduces other problems since DST range might be different 
> in various locations.
> 

Rainer,

File time is usually stored as UTC, which does not take DST into account.
Only FAT would give problems, but I am using NTFS throughout my systems.

That is a really strange thing.

Seems that time comparison was never used much in the past, even so it was available for packages.

---
Stefan




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