Run results for: moment vs date-fns 2025

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:139.0) Gecko/20100101 Firefox/139.0

Browser: Firefox 139

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

date-fns

64K/s

moment

59K/s

View exact numbers

Test name	Executions per second
✓ date-fns	64,026 Ops/sec
moment	58,625 Ops/sec

HTML Preparation code:

<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/date-fns/4.1.0/cdn.min.js"></script>

Script Preparation code:

window.__date__ = new Date();
window.__expected__ = '2000/01/06';

Tests:

moment
var actual = moment(__date__).format('YYYY/MM/DD'); console.assert(actual === __expected__);
date-fns
var actual = dateFns.format(__date__, 'yyyy/MM/dd'); console.assert(actual === __expected__);

Run results for: moment vs date-fns 2025

It's not a deep validation; I'm just comparing ONE function that those two libraries have in common.

moment

date-fns