Phil,
Thanks for maintaining the tool and this forum!
I thought about writing a quick perl script to do what I want, but figured I ask to see if exiftool could do what I need.
I've got a bunch of pictures taken with an older android, that saved the DateTimeOriginal as "yyyy/mm/dd hh:mm:ss". I think that's ok for some tools, but windows and my new windows phone don't seem to be very happy with that. I manually modified one of the files to "yyyy-mm-dd hh:mm:ss" and windows seemed to be happy with that.
At first glance, I didn't see options that jumped out at me to fix that, but perhaps I missed it. I tried doing a timeshift of "0:0:0 0:0:0", but that didn't modify the file, so then I tired "0:0:0 0:0:1", and that modified the file, but kept the / in the date format.
Regards,
Ryan
Hi Ryan,
This command will fix all of the date/time tags:
exiftool -tagsfromfile @ "-all:all<time:all" DIR
where DIR is the name of a directory containing the images.
This works because ExifTool is somewhat flexible about the input date/time format, and it automatically fixes the format when writing. The "all:all<" is necessary to force ExifTool to write the tags back to the same locations where they were found.
- Phil
Thanks Phil, I'll give this a shot.
I'm curious, if it writes back in a proper format, why did me adding 1s to the time not cause the output file to be written in a correct exif format?
I can answer this if you give me the exact command and tell me what version of ExifTool you are using.
- Phil
I'm at work, and I ran this at home (and I likely closed the command window, and I don't think Windows has a command history like bash).
It's the latest version 9.76, I believe.
I think I used
exiftool.exe -DateTimeOriginal+="0:0:0 0:0:1" file.jpg
Ah, sorry. I missed that you were talking about shifting a date/time value. You're right, the reformatting is not done when shifting a date/time, only when writing a new value.
- Phil
Ok, that makes sense why it didn't work then.
For invalid formats, can the tool parse "mm/dd/yyyy hh:mm:ss AM|PM"? I've found I've got some pictures in that format as well. Not as many, so if I had to manually fix those, it wouldn't be a huge issue.
No, it won't recognize AM/PM. See FAQ 5 (https://exiftool.org/faq.html#Q5) for a description of input date/time formats.
- Phil