Update images datetime with fixed offset

Software darktable
1

Hi,
I used two DSLR to take pictures, and noticed afterwards that one of them was not configured with the exact datetime!
Is there any “easy way” with Darktable to update the EXIF datetimes of an images selection with a custom offset?
Best regards,
Thierry

2

You’ll want exiv2 or exiftool. Darktable won’t do it.

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3

it’s quite simple using the geotagging module:

  • select one image where you know the correct time
  • enter the correct date/time
  • click the icon ‘lock date/time offset’
  • select all images you want to correct
  • click the button ‘ally offset’

(also described in the manual: darktable 4.0 user manual - geotagging)

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4

The OP said update the EXIF datetimes. darktable will use the offset internally, but it will not modify the input files, not even their headers. That’s why Mica suggested external tools.

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