I just realized that ART interprets the date and time of my photos wrongly by one hour. I’m guessing this is a DST issue. All of the photos I’ve processed ended up with a timestamp one hour later than the original. It also shows up this way in the editor itself. I’m attaching an original RAW file, the OOC JPEG, and the version processed in ART. How can I fix this?
Operating system is Slackware64 15.0 with network time via NTP. By the way, I saw a similar issue about this for Darktable.
Just some more info: using exiftool to probe the CR3 metadata, it shows “Date/Time Original” as 2022:08:19 14:11:21.64-05:00 and “Daylight Savings” Off. The JPEG from ART has both “Create Date” and “Modify Date” as 2022:08:19 15:11:21. So somewhere along the line ART is adding an hour.
exiv2 reports “Image Timestamp” as 2022:08:19 14:11:21. The exiv2 summary is relatively short, and I’m not quite sure how to get at the rest of the information from it. Here is what I get if I use the -g option to search for Date:
I realized something else, though: according to exiftool, in addition to the “Date/Time Original” stamp, the CR3 also has a “Create Date” and “Modify Date”, which match what I’m getting out of ART. Maybe that’s where ART is getting it from?
I took another photo just to make sure that the OOC JPEG has the right hour, and it does. Though maybe that means it will be wrong in the winter when we change out of DST. I never really thought about it before.
