Benchmark: DateTime Timezone Test

HTML Preparation code:

<!-- Luxon v3.4.4 (Latest major version, maintained) -->
<script src="https://cdn.jsdelivr.net/npm/luxon@3.4.4/build/global/luxon.min.js"></script>

<!-- date-fns v3.6.0 (modular library, not typically used via single CDN) -->
<!-- CDN version includes all functions -->
<script src="https://cdn.jsdelivr.net/npm/date-fns@3.6.0/dist/date-fns.min.js"></script>

<!-- Moment.js v2.29.4 (Latest, still in maintenance mode) -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.4/moment.min.js"></script>

<!-- Correct: Moment.js with Timezone support -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment-timezone/0.5.43/moment-timezone-with-data.min.js"></script>

<!-- Day.js v1.11.10 (Latest) -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/dayjs/1.11.10/dayjs.min.js"></script>

<!-- Day.js UTC plugin (required for timezone support) -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/dayjs/1.11.10/plugin/utc.min.js"></script>

<!-- Day.js Timezone plugin -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/dayjs/1.11.10/plugin/timezone.min.js"></script>

<script src='https://cdn.jsdelivr.net/npm/temporal-polyfill@0.3.0/global.min.js'></script>

Script Preparation code:

const isoString = "2023-01-01T12:34:56.789Z";
  dayjs.extend(dayjs_plugin_utc);
  dayjs.extend(dayjs_plugin_timezone);

Tests:

Luxon
luxon.DateTime.fromISO(isoString).setZone('Europe/Berlin').startOf('day').toISO();
dayJs
dayjs(isoString).tz('Europe/Berlin').startOf('day').format();
Moment
moment.tz(isoString, 'Europe/Berlin').startOf('day').format();
Temporal timeozne
Temporal.Instant.from(isoString) .toZonedDateTimeISO('Europe/Berlin') .with({ hour: 0, minute: 0, second: 0, millisecond: 0 }).toString();

Historical Performance Data aggregated from 5 community runs

Desktop Results:

Chrome 5 runs

Moment

201K/s

Luxon

41K/s

dayJs

16K/s

Fastest: Moment (12.2x faster)

View exact numbers

✓ Moment: 200,957 ops/sec
• Luxon: 41,492 ops/sec
• dayJs: 16,441 ops/sec

Results show median performance across all community submissions. Run this benchmark yourself to verify on your device.

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Luxon
dayJs
Moment
Temporal timeozne

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36

Browser/OS: Chrome 137 on Mac OS X 10.15.7

View result in a separate tab

Luxon

31K/s

Moment

26K/s

Temporal timeozne

9K/s

dayJs

2K/s

View exact numbers

Test name	Executions per second
✓ Luxon	31,006 Ops/sec
Moment	25,694 Ops/sec
Temporal timeozne	8,659 Ops/sec
dayJs	2,455 Ops/sec

DateTime Timezone Test (version: 3)

f

Comparing performance of: `Luxon vs dayJs vs Moment vs Temporal timeozne`

Created: one year ago by: Registered User

Go to the latest result

Luxon

dayJs

Moment

Temporal timeozne

Historical Performance Data aggregated from 5 community runs

Desktop Results:

Chrome 5 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

DateTime Timezone Test (version: 3)

f

Comparing performance of: Luxon vs dayJs vs Moment vs Temporal timeozne

Created: one year ago by: Registered User

Go to the latest result

Luxon

dayJs

Moment

Temporal timeozne

Historical Performance Data aggregated from 5 community runs

Desktop Results:

Chrome 5 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `Luxon vs dayJs vs Moment vs Temporal timeozne`