Run results for: Date.now() vs static now() function

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36

Browser: Chrome 121

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Date.now()	5065367.0 Ops/sec
new Date().getTime();	5467034.5 Ops/sec

Script Preparation code:

var timestamp = null;
var _timer = 1000000;

function now() {
  if (_timer !== undefined) {
    return _timer;
  }
  _timer = 1000000;
  return _timer;
}

Tests:

Date.now()
timestamp = Math.floor(Date.now() / 1000);
new Date().getTime();
timestamp = now();

Run results for: Date.now() vs static now() function

Date.now()

new Date().getTime();