Run results for: Intl.DateTimeFormat performance edit

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.1 Safari/605.1.15

Browser: Safari 17

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

using Date

9K/s

Using Intl.DateTimeFormat

9K/s

View exact numbers

Test name	Executions per second
✓ using Date	9,269 Ops/sec
Using Intl.DateTimeFormat	8,974 Ops/sec

Script Preparation code:

var now = new Date()
var targetHour = 9 
var timezone = 'America/Toronto'

Tests:

Using Intl.DateTimeFormat
const formatter = new Intl.DateTimeFormat(undefined, { timeZone: timezone, hour: 'numeric', minute: 'numeric', second: 'numeric', }) const currentTime = formatter.format(now) // Extract the hour part and convert it to a number const currentHour = parseInt(currentTime.split(':')[0], 10)
using Date
const currentTime = now.toLocaleTimeString('en-US', { timeZone: timezone, hour12: false }); // Extract the hour part and convert it to a number const currentHour = parseInt(currentTime.split(':')[0], 10);