How to solve the problem with UNIX time on different axes?

Question

JavaScript

When called (as well as new Date()) - on Windows machines it will return the 19th number, on *nix → 20th number (which is correct). How can you get the same result everywhere?
moment(580064400000).date()

Answer 1

time synchronization by means of ntp?

Answer 2

Chota, I don’t understand what’s going on at all :) I decided to try it in the console:

Date(580064400000); // "Wed Feb 17 2016 11:16:02 GMT+0300 (RTZ 2 (зима))"
new Date(580064400000); // Thu May 19 1988 20:00:00 GMT+0300 (RTZ 2 (зима))

UPD: And understood, there stupidly .toString() is called.