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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

new Date().toISOString()

934K/s

new Date().toLocaleString()

501K/s

View exact numbers

Test name	Executions per second
✓ new Date().toISOString()	933,857 Ops/sec
new Date().toLocaleString()	501,474 Ops/sec

Script Preparation code:

var timestamp = null;

Tests: