Run results for: luxon vs datefns vs moment vs day.js test

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36

Browser: Chrome 144

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 7 months ago

Benchmark engine: Benchmark.js

datefns

1.0M/s

luxon

693K/s

day.js

674K/s

moment

263K/s

View exact numbers

Test name	Executions per second
✓ datefns	1,045,187 Ops/sec
luxon	692,852 Ops/sec
day.js	674,176 Ops/sec
moment	262,884 Ops/sec

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/luxon@1.26.0/build/global/luxon.min.js"></script>
<script src="https://igor.moomers.org/random/datefns.js"></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.30.1/moment.min.js'></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/dayjs/1.11.7/dayjs.min.js'></script>

Script Preparation code:

window.ds = "2020-02-19T00:51:53.623839+00:00";

Tests:

datefns
window.datefns.parseISO(window.ds)
luxon
luxon.DateTime.fromISO(ds);
moment
moment(ds, moment.ISO_8601)
day.js
dayjs(ds)