Run results for: Date.now() vs new Date().toISOString() vs performance.now();

Run details:

User agent: Mozilla/5.0 (Linux; Android 14; SM-F956N Build/UP1A.231005.007; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/130.0.6723.86 Safari/537.36; PAYAPP/3.4.5 An/14 (ko) PAY/WEB TYPE/TRANSPARENT

Browser: Chrome 130

Operating system: Android

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

timestamp = Date.now();

11.1M/s

timestamp = performance.now();

5.5M/s

timestamp = new Date().toISOString();

2.1M/s

View exact numbers

Test name	Executions per second
✓ timestamp = Date.now();	11,092,117 Ops/sec
timestamp = performance.now();	5,490,794 Ops/sec
timestamp = new Date().toISOString();	2,112,812 Ops/sec

Script Preparation code:

var timestamp = null;

Tests:

timestamp = Date.now();
timestamp = Date.now();
timestamp = new Date().toISOString();
timestamp = new Date().toISOString();
timestamp = performance.now();
timestamp = performance.now();