Run results for: dayjs vs luxon vs js-joda vs date-fns (manipulating)

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:136.0) Gecko/20100101 Firefox/136.0

Browser: Firefox 136

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

date-fns

3.7M/s

js-joda

2.3M/s

Dayjs

453K/s

luxon

419K/s

View exact numbers

Test name	Executions per second
✓ date-fns	3,735,813 Ops/sec
js-joda	2,332,448 Ops/sec
Dayjs	452,777 Ops/sec
luxon	419,405 Ops/sec

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/dayjs@1.11.9/dayjs.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/luxon@3.4.3/build/global/luxon.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/@js-joda/core@5.5.3/dist/js-joda.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/date-fns/1.9.0/date_fns.min.js"></script>

Script Preparation code:

var dayjsNow = dayjs();
var luxonNow = luxon.DateTime.now();
var jsJodaNow = JSJoda.ZonedDateTime.now();
var now = new Date();

Tests:

Dayjs
dayjsNow.add(1, 'month');
luxon
luxonNow.plus({ months: 1 });
js-joda
jsJodaNow.plusMonths(1);
date-fns
dateFns.addMonths(now, 1);