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

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36

Browser: Chrome 121

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

new Date().toISOString()

1.4M/s

new Date().toLocaleString()

634K/s

View exact numbers

Test name	Executions per second
✓ new Date().toISOString()	1,424,784 Ops/sec
new Date().toLocaleString()	634,150 Ops/sec

Script Preparation code:

var timestamp = null;

Tests: