I have an older version of gopro. It just resets the time to the default whenever I switch battery. I often forget to set it to the correct time. So I just created this script to adjust/shift timestamps of all files in a directory to another time with reference with another file and its correct time. You need to indentify a file that's the earliest in your collection. Then use this file's correct time as a reference.

This script was only tested on Mac.

This project is licensed under the MIT License.