Timelapse: timeshift your timestamp!!

Saturday, 5 December, 2015

AS I noted in my previous blog entry, if you forget to set your time/date on your camera and its wrong, you need to reset it in order to get XnView to pull our this metadata and overprint it on your JPGs. If you’ve got more than 1 or 2 to do (I had about 4000!) then you need an alternative…

And here the amazingly complete ExifTool does a brilliant job. For all things EXIF look no further. It’s power is fully opened up in the command line version (rather than the drag and drop). And yes- it supports a timeshift facility.

For the images I had, the camera had been dead for several months so when a battery was put back in it reset the time/date to a default value. All subsequent images were therefore out by the same offset. I ignored the days as I wanted a time overstamp. Running the command:

exiftool -AllDates+=12:18:28 .

worked perfectly. This instructs exiftool to shift forward all time fields by 12 hrs 19 min 28s. More details here. Job sorted.

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