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IMatch Discussion Boards => General Discussion and Questions => Topic started by: rienvanham on December 21, 2022, 03:48:25 PM

Title: Timezone issue?
Post by: rienvanham on December 21, 2022, 03:48:25 PM
Hi Mario,

I have some photo's with an unknown creationdate but I know the year (e.g. 1967). When I fill the "Date Subject Created" with "1967-01-01" the photo is added to "1967" in the Timeline. But, if I fill the  "Date Subject Created" with "1967-01-01+02:00"  the photo is added to "1966" in the Timeline. Do I oversee something?

Thanks in advance!
Cheers, Rien.
Title: Re: Timezone issue?
Post by: Mario on December 21, 2022, 04:04:02 PM
What's your time-zone?

"1967-01-01+02:00" is very near to the beginning of the year. If your time-zone is > 2 hours from UTC, the File.DateTime (which is in your local time-zone) may fall into the year before.

Maybe use "1967-01-02+02:00" instead? (A day further from the beginning of the year)
Or maybe match the time-zone offset to your local time-zone offset.
Title: Re: Timezone issue?
Post by: rienvanham on December 21, 2022, 04:07:49 PM
Hi Mario,

Off course I can live with it. I tried it with "1967-01-01" and "1967:01:01 00:00:00+01:00" (which is the correct timezone for the Netherlands) iMatch stores it in the correct year. But  1967-01-01 00:00:00+02:00" not. I was just wondering if I missed any setting.

Thanks for your response!
Title: Re: Timezone issue?
Post by: Mario on December 21, 2022, 04:24:21 PM
IMatch uses File.DateTime to anchor files on the timeline, event view etc.
See How IMatch uses Date and Time Information (https://www.photools.com/help/imatch/tech_exifdate.htm) Check the date and time shown in the File Window (Default layout). It should be 1967 when the file is put into 1967.
Title: Re: Timezone issue?
Post by: rienvanham on December 21, 2022, 05:00:34 PM
I only tested it with "Date Subject Created". Didn't change any other tag. +02:00 stores it in 1966; +01:00 stores it in 1967.
Title: Re: Timezone issue?
Post by: Mario on December 21, 2022, 06:19:23 PM
Try the 2nd day of the year.
Title: Re: Timezone issue?
Post by: rienvanham on December 22, 2022, 09:50:51 AM
I just don't use the timezone because it isn't that important. Then it works fine.

Thanks!