While this specific filename appears in various data logs and file directories online, it is most commonly associated with:
: Automated systems frequently use this exact year-month-day, hour-minute format for easy cataloging. 2021-11-07,17-48.mp4
Without more context, such as where you found the file or what the video contains, it is likely a from that specific Sunday afternoon in November 2021. Centuron-PSX directory listing - Internet Archive While this specific filename appears in various data