I used phockup to sort photos/videos from my phone's backup. A lot of them ended up in the "unknown" folder since they don't have "date taken". Now I want to sort files from "unknown" by their "date modification" to folders where my sorted files are (e.g. 2023/January/01-January). What should I use?
Then select photos by desired group and move them with drag and drop.
Or use Alt+M to move them in folder (the folder will be created if not exist)
You can use exiftool for this, with a commandline something like this:
exiftool '-Directory<FileModifyDate' -d c:\target\%Y%m%d -r c:\source
This uses the file system modify date. Use
ModifyDate if you want to use the EXIF ModifyDate.
You can use exiftool to list all EXIF tags your files actually contain.
See strftime for the date format options to cobble together a directory name to your wishes.