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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:107.0) Gecko/20100101 Firefox/107.0

Browser: Firefox 107

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
new Date().toISOString()	2268738.0 Ops/sec
new Date().toLocaleString()	538279.1 Ops/sec

Script Preparation code:

var timestamp = null;

Tests: