Why is the value of new Date different on server and client?

Question

JavaScript

Good day, I noticed this picture:

The left window is the browser, the right window is the node.js server, everywhere I request the value of new Date().getTime();
Why is this happening and how to deal with it? I need to send the start time of the animation to the client, and with this problem I cannot compare the time values ​​at all.

Answer 1

It's just that somewhere (on the client, or on the server, or both) the clock is wrong.
https://habrahabr.ru/post/146109/ items 11-16.