Re: Time Zone.

[Pat Suwalski <pat suwalski net>]

Tim Retout wrote:
> On Wed, 2008-04-30 at 09:39 -0700, Bill Moseley wrote:
> > Dates in the database should not be floating, but based on some
> > timezone.
>
> Agreed...

Disagreed. There is no such thing as a "floating date". The timestamp is 
there, and stays unaltered. In the 99% case, it is based on the timezone 
of the camera.

> > Since EXIF doesn't have a timezone associated with the timestamp on
> > the image isn't the only possible solution to ask the use at import
> > what timezone the camera is set for?
>
> I can't think of a good user interface for this - if there are different
> timezones in the same import, it becomes complicated. That's not to say
> that it can't be done.

Don't need one.
 1) Import photos.
 2) Select the ones out of order.
 3) Adjust time
 4) Shift by x number of hours.

This is not rocket science, a user will do this if they want to. Adding 
timezones complicates this.

>      1. Assume that the camera was using the same timezone as the
>         computer is set to. This is probably the most common case.

Done.

>      2. Provide a mechanism for users to change the timezone of photos
>         after import.

They can. Time shift. Anything else is superfluous to the 99% case, 
because the user cares about the timezone their computer is in. Almost 
no one on their trip to Paris will care that they took the photo at 
14:00 Paris time. Their computer will show it as 09:00 EST and they'll 
be happy. Order preserved.

>      3. Require users to purchase a camera that supports XMP and
>         timezones. (I assume these exist?)

"In the future there will be robots."

--Pat