🚀 go-pugleaf

Andrue Cope wrote:

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

No need to be sorry, I enjoy puzzles, but this one...

>Actually what you have here /is/ a time that doesn't change and it *is*
>UTC.
That's what I thought, but if I save it, as is, and later compare it
with itself, it's different.?

> 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.

So you're saying that FindFirstFile doesn't return UTC? That Local
time affects the returned value?

>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

I thought that was what I was doing.

>at the functions FileTimeToLocalTime and LocalTimeToFileTime for
>inspiration.

Umm.. ok...Lessee now...
FindFirstFile returns  10:15UTC.  I push that through
FileTimeToLocalFileTime and get 9:15BST. Which I then put into
LocalFileTimeToFileTime to get 10:15UTC again.
Ok, fine, but if I started with, and binary saved, the UTC from
FindFirstFile.....how's that any different?

Still confused....

Unless CompareFileTime is somehow changing things?
But, also what I don't get
April 3, 10:15  doesn't change to 
April 3,  9:15 just because this is April 5.