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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36 Edg/135.0.0.0

Browser: Chrome 135

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

timestamp = Date.now();

7.6M/s

timestamp = new Date().toISOString();

1.5M/s

View exact numbers

Test name	Executions per second
✓ timestamp = Date.now();	7,636,814 Ops/sec
timestamp = new Date().toISOString();	1,460,112 Ops/sec

Script Preparation code:

var timestamp = null;

Tests: