Run results for: Date.now() vs new Date().getTime() vs performance.now() vs console.time("") - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36

Browser: Chrome 118

Operating system: Windows

Device Platform: Desktop

Date tested: 5 months ago

Test name	Executions per second
Date.now()	1764459.0 Ops/sec
new Date().getTime();	665887.3 Ops/sec
performance.now();	1161666.0 Ops/sec
console.time();	94341.8 Ops/sec

Website performance monitoring

Script Preparation code:

var timestamp = null;

Tests:

Date.now()
timestamp = Date.now();
new Date().getTime();
timestamp = new Date().getTime();
performance.now();
timestamp = performance.now()
console.time();
timestamp = console.time("")