🚀 go-pugleaf

On Sun, 04 Apr 2004 17:30:42 -0700, Bob Gonder wrote:

> When posting to the db (flat binary file, nothing fancy like SQL), I
> use the raw ftCreationTime.  Then next time, I use CompareFileTime to
> compare the saved value against the current ftCreationTime.
> 
> I thought ftCreation time was supposed to be UTC, and hence not
> affected by DST changes.
> 
> What can I use to get a non-changing file time

Heh, heh.

Sorry.

Actually what you have here /is/ a time that doesn't change and it *is*
UTC. The point is that /you/ the user have entered daylight savings and so
the time stamps on the files (which are still in UTC) appear to have
changed but it's actually you that has done the changing.

If you created a file at 10:15 UTC while based in the UK in January the
time stamp would initially show as 10:15 (GMT). Then British Summer Time
(daylight savings) starts and now the file shows 9:15. This is because 9:15
UTC is 10:15 BST.

You need to change your database so that it stores its times in UTC. Look
at the functions FileTimeToLocalTime and LocalTimeToFileTime for
inspiration.
-- 
Andrue Cope
[Bicester UK]