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

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_1_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 16

Operating system: iOS 16.1.1

Device Platform: Mobile

Date tested: 2 years ago

Benchmark engine: Benchmark.js

new Date().getTime();

2.6M/s

Date.now()

2.6M/s

View exact numbers

Test name	Executions per second
✓ new Date().getTime();	2,620,918 Ops/sec
Date.now()	2,555,809 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();