Comment by mholt

Yesterday while writing code to parse MP4 metadata, I learned that MP4 uses an epoch from the year 1904. (I was suspicious when I saw the timestamp start with a 3).

Turns out there's lots of epochs, and the Unix epoch doesn't have any "rationale" according to Wikipedia: https://en.wikipedia.org/wiki/Epoch_(computing)#Notable_epoc...

For example, Ingenuity helicopter counts from 2000.