Why do I need to multiply unix timestamps by 1000 in JavaScript?

Question

I\'m sure there\'s a reason I have to add three zeros to every Unix timestamp in JavaScript in order to get the correct date. Can you tell me why? Is it as simple as millise

Answer 1

Unix time is the number of seconds since the epoch (1 Jan 1970). In Javascript, the Date object expects the number of milliseconds since the epoch, hence the 1000-fold difference.

Answer 2

Javascript uses the number of milliseconds since epoch. Unix timestamp is seconds since epoch.

Hence, the need to convert Unix timestamp into millseconds before using it in Javascript

Answer 3

Because Javascript uses milliseconds internally, while normal UNIX timestamps are usually in seconds.