name2mtime is a command-line tool to change the last-modification time of files basing on their filenames.
For example, if you have a file IMG_20220327_123456.jpg, it will change it last-modification time (mtime) to 2022-03-27 12:34:56.
Usage:
name2mtime FILE1 [FILE2…]
This requires Go but no third-party modules.