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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Browser: Chrome 130

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

timestamp = Date.now();

3.3M/s

timestamp = new Date().toISOString();

692K/s

View exact numbers

Test name	Executions per second
✓ timestamp = Date.now();	3,271,114 Ops/sec
timestamp = new Date().toISOString();	692,035 Ops/sec

Script Preparation code:

var timestamp = null;

Tests: