[dandandan]

The UNIX epoch is midnight, January 1st, 1970 while the landing on the moon was 1969-07-20.

[marsRoverDev]

NASA / ESA epoch is 1 January 1958:

https://public.ccsds.org/Pubs/301x0b4e1.pdf

[emmelaich]

> he UNIX epoch is midnight, January 1st, 1970

in UTC.

[phyzome]

But after 10,000 years (or whatever) that distinction might be lost.