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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

timestamp = Date.now();

6.0M/s

timestamp = new Date().toISOString();

1.6M/s

View exact numbers

Test name	Executions per second
✓ timestamp = Date.now();	6,025,808 Ops/sec
timestamp = new Date().toISOString();	1,642,267 Ops/sec

Script Preparation code:

var timestamp = null;

Tests: