: Look at your digital calendar for August 18, 2019 . Were you at a concert, a wedding, or traveling?
: Move it to a "2019 Archive" folder in Google Drive, iCloud, or Dropbox to prevent local hardware failure loss. VID_20190818_182958.mp4
The filename tells you when it was saved, but "Metadata" can tell you much more. : Right-click file > Properties > Details . On Mac : Right-click file > Get Info . : Look at your digital calendar for August 18, 2019