timestamp

2nd try at posting this. Last one vanished. I looked at older posts but found no solution or answer. My MPP files, as written to the SD card, have different time stamps. The SRT & JPG are in local time. The MP4 is 5 hours behind. At first I thought this was GMT but that would be 5 hours ahead...

First, the question: I was forced to fly without a screen (see story below). All photos and videos came up with a 1970 timestamp. (That's the year I was born, but I don't think DJI knows that ;-)). Is there any Time stamp setting one can/should adjust in either the actual drone or the...