Run results for: luxon vs datefns vs moment-timezone

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:125.0) Gecko/20100101 Firefox/125.0

Browser: Firefox 125

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

datefns

400K/s

luxon

184K/s

moment-timezone

93K/s

View exact numbers

Test name	Executions per second
✓ datefns	400,321 Ops/sec
luxon	184,186 Ops/sec
moment-timezone	93,036 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://momentjs.com/downloads/moment-with-locales.min.js'></script>
<script src='https://momentjs.com/downloads/moment-timezone-with-data-10-year-range.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-timezone
moment.utc(ds)