In many years, December 21 is the Winter Solstice; the video might feature specific lighting or astronomical events related to the shortest day of the year.
Open the video in the Photos app , swipe up, and you will see the resolution, frame rate (fps), and file size. 2. "Feature" as a Software Function Video Dec 21, 10 09 54 AM.mp4
Right-click the file and select Get Info . Look under "More Info" for dimensions, codecs (usually H.264 or HEVC), and duration. In many years, December 21 is the Winter
If "proper feature" refers to what is happening in the video, the timestamp suggests it may be related to: "Feature" as a Software Function Right-click the file
If you are looking for the technical specifications of this specific file, you can find them by:
Right-click, select Properties , and go to the Details tab.
This naming format is the default for the iOS Control Center screen recording tool.