Benchmark: luxon vs dayjs vs date-fns vs ff native temporal vs moment (formatting)

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/luxon/3.5.0/luxon.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/dayjs/1.11.13/dayjs.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/date-fns/4.1.0/cdn.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js"></script>

Script Preparation code:

window.timestamp = 1735660089
window.intlFormat = {
  year: "numeric",
  month: "2-digit",
  day: "2-digit",
  hour: "numeric",
  minute: "numeric",
  hour12: true,
}

Tests:

luxon v3.5.0
var date = luxon.DateTime.fromMillis(timestamp * 1000); date.toLocaleString(intlFormat)
dayjs v1.11.13
var date = dayjs(timestamp * 1000); date.format("L LT")
date-fns v4.1.0
var date = dateFns.fromUnixTime(timestamp); dateFns.intlFormat(date, intlFormat)
Native Temporal (Firefox 139)
var instant = Temporal.Instant.fromEpochMilliseconds(timestamp * 1000) instant.toLocaleString(intlFormat)
moment.js v2.29.1
var date = moment(timestamp) date.format("L LT")

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
luxon v3.5.0
dayjs v1.11.13
date-fns v4.1.0
Native Temporal (Firefox 139)
moment.js v2.29.1

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.3.1 Safari/605.1.15

Browser/OS: Safari 26 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
luxon v3.5.0	955348.0 Ops/sec
dayjs v1.11.13	3202962.0 Ops/sec
date-fns v4.1.0	32443.9 Ops/sec
Native Temporal (Firefox 139)	0.0 Ops/sec
moment.js v2.29.1	1416334.4 Ops/sec

Related benchmarks:

luxon vs dayjs vs date-fns vs ff native temporal vs moment (formatting) (version: 1)

Create and format dates from a timestamp

Comparing performance of: luxon v3.5.0 vs dayjs v1.11.13 vs date-fns v4.1.0 vs Native Temporal (Firefox 139) vs moment.js v2.29.1

Created: 11 months ago by: Guest

Jump to the latest result

luxon v3.5.0

dayjs v1.11.13

date-fns v4.1.0

Native Temporal (Firefox 139)

moment.js v2.29.1

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A