If it takes the time from GPS, then why today (7.nov.2019) and yesterday I get date 2000.03.23 (23rd March of year 2000) as name of my recordings (also in EXIF data in pictures)?
The flying itself didn't have any problems, and it was outside, so GPS was ON. RTH also worked fine.
EDIT: BTW, the TIME was correct (as I can recall, recordings happened aprox. at time written in filenames and EXIF). All software and firmware are the latest, and I am using old & small iPhone 5 (with correct date/time and with disabled any communication except WiFi).