Ask HN: How calendars are implemented in different programming language?

4 pointsponsfrilus3 comments

Counting the number of seconds between 1970-01-01 and 0000-00-00 will differ from a language to another. Is there eli5 or relevant post about it?

There are leap seconds and days which various languages may or may not account for.

Yes! This Computerphile's video is a must watch!