Now

Date.now() returns the number of milliseconds that have elapsed since midnight January 1, 1970 UTC.

When this page loaded, Date.now() was called and returned:

1743585945443

That number of milliseconds is:

55 years, 3 months, 1 day, 9 hours, 25 minutes, 45 seconds, and 443 milliseconds

Click the button below to call Date.now() again:

When the button was clicked, Date.now() was called and returned:

That number of milliseconds is:

The difference between the two calls to Date.now() is: