I often participate in race events where you can download images afterwards, but for some strange reason the downloads come with the image tags stripped. Both timestamps and locations.

Fortunately I know the race start time and the approximate time the photo was taken on the course.

Using pyexiv2 I created a utility that takes an optional timestamp (with timezone) and uses the file modifications times to create a time stamp.

So for example if I download race photos I only have my local computers modification time for the files

But the race was actually on 2022-08-21 08:00:00-0400 So I run

python3 adjustPhotos.py --relative '2022-08-21 08:00:00-0400' ~/Downloads/{1,2,3}.jpg

This will create an Exif.Photo.DateTimeOriginal tag for each file with a time of 08:00:00, 08:00:01, and 08:00:10

Need to determine how to properly pass Latitude and Longitude to set coordinates