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

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:121.0) Gecko/20100101 Firefox/121.0

Browser: Firefox 121

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 2 years ago

new Date().toISOString()

3.9M/s

new Date().toLocaleString()

637K/s

View exact numbers

Test name	Executions per second
✓ new Date().toISOString()	3,909,182 Ops/sec
new Date().toLocaleString()	637,465 Ops/sec

Script Preparation code:

var timestamp = null;

Tests: