How to change time only and keep the date

[mlino]

StarGeek edit: Split from this old thread

I'm trying to change only the date from an image and tried something similar to the abome mentioned, but it doesn't work.

Code Select Expand

exiftool -DateTimeOriginal"<${DateTimeOriginal;s/ 20240908/ .*/}" "_A9_7062_ILCE-9_E 17-28mm F2.8-2.8.ARW"
How can I do that?

Thanks!

Marcio

[StarGeek]

Your RegEx substitution is incorrect. You are using a simple string of numbers for your date and requiring a leading space. The date format is "Year:Month:Day Hour:Minute:Second", e.g. "2024:09:09 12:00:00". And you don't have a replacement value.

To change only the date, your command would be something like this
exiftool "-DateTimeOriginal<${DateTimeOriginal;s/2024:09:08/2022:03:14/}" "_A9_7062_ILCE-9_E 17-28mm F2.8-2.8.ARW"

But a Shift Time operation is usually better in cases like this. The command for that would be along these lines
exiftool -DateTimeOriginal±="Year:Month:Day 0" /path/to/files/

Replace ± with either a plus or minus sign, depending upon which way you want to shift the time. Replace each of Year/Month/Day with the amount you want to shift by, using 0 if you don't want to shift that at all. The trailing (space)0 (which represents the hour) is required because otherwise ShiftTime operation default to shifting hours.