: Often represents the time in HHMMSS format (11:33:24 AM).
: Usually refers to milliseconds or a random "collision-prevention" number to ensure no two files have the identical name if saved at the same second. Download Shot 20221023 113324829 mp4
File Naming Conventions - Harvard Biomedical Data Management : Often represents the time in HHMMSS format (11:33:24 AM)