I used the following to change the Date Created to the actual date the photo was taken because exporting from Photos showed the date of export. "for file in *; do SetFile -d "$(exiftool -p '$CreateDate' -d '%m/%d/%Y %H:%M:%S' "$file")" "$file"; done"

I got the following warning: "Warning: [minor] Adjusted MakerNotes base by 46 - IMG_1369.JPG" -- what does this mean?

I found the above suggestion at this thread: Export from Mac Photos app while keeping date created data?

Also what is the cmd to change "Date Modifed" using exiftool?


  • The error message seems to be related to that one picture. Other files did not return any error messages.
    – imac2
    Jul 13, 2020 at 22:42

1 Answer 1


As a test, I exported six photos as JPG files from Photos, on macOS High Sierra, into a new folder.

Then in Terminal I change directory to the new folder containing the exported photos and ran the following command to change both the create and modify date/time from the EXIF info:

for f in *; do SetFile -d "$(exiftool -p '$CreateDate' -d '%m/%d/%Y %T' "${f}")" -m "$(exiftool -p '$ModifyDate' -d '%m/%d/%Y %T' "${f}")" "${f}"; done

The prompt returned without error, and the exported files now have the original create and modify date/time.

  • Is there a similar command that would work for video files (.MOV)?
    – imac2
    Jul 13, 2020 at 23:05
  • @imac2, Because of for f in *; the same command works on any files that returns the value of '$CreateDate' and '$ModifyDate' from exiftool. If you want to limit it to a particular file type, then use, e.g.: for f in *.MOV; ... Jul 14, 2020 at 0:32
  • I got the following warnings when I tested it on two .MOV files. "Warning: [minor] The ExtractEmbedded option may find more tags in the media data - IMG_7264.MOV Warning: [minor] The ExtractEmbedded option may find more tags in the media data - IMG_7264.MOV I got the same two warnings each for both the files. -- Although it did still change the dates but the time stamp seems to be off. I think it is something to do with UTC time stamp. Are these error warnings relevant or can it be ignored? Any suggestion on how to correct the time stamp offset? Thanks.
    – imac2
    Jul 16, 2020 at 2:32

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