A recording of a weekend event, graduation celebration (common in May), or Mother's Day gathering (which fell on May 12, 2019 in many countries, including the US).
Checking the to confirm if it was a phone, drone, or CCTV. 20190512 215705 mp4
Given the time (late evening on a Sunday), the video likely falls into one of these three categories: A recording of a weekend event, graduation celebration
the file (on Windows) and selecting Properties > Details . A recording of a weekend event
High volume of personal family videos recorded globally.