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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser: Chrome 133

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

new Date().toISOString()

1.9M/s

new Date().toLocaleString()

757K/s

View exact numbers

Test name	Executions per second
✓ new Date().toISOString()	1,921,597 Ops/sec
new Date().toLocaleString()	757,008 Ops/sec

Script Preparation code:

var timestamp = null;

Tests: