Run results for: luxon vs datefns vs moment vs dayjs (calculations)

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_4_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 17

Operating system: iOS 17.4.1

Device Platform: Mobile

Date tested: 5 months ago

Test name	Executions per second
datefns	1249049.2 Ops/sec
luxon	359824.4 Ops/sec
moment	1936075.8 Ops/sec
dayjs	489750.6 Ops/sec

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/dayjs/1.10.7/dayjs.min.js" integrity="sha512-bwD3VD/j6ypSSnyjuaURidZksoVx3L1RPvTkleC48SbHCZsemT3VKMD39KknPnH728LLXVMTisESIBOAb5/W0Q==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/luxon/2.3.0/luxon.min.js" integrity="sha512-2j5fkjQ4q5ceXgfxi+kqrU2Oz234MrpyywZsQz1F5OGnfat7mOhjRr0oz5cpQ+YwwWB+hhDBSyxNGuL/tKWMFw==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/date-fns/1.30.1/date_fns.min.js" referrerpolicy="no-referrer"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js" integrity="sha512-qTXRIMyZIFb8iQcfjXWCO8+M5Tbc38Qi5WzdPOYZHIlZpzBHG3L3by84BBBOiRGiEb7KKtAOAs5qYdUiZiQNNQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>

Script Preparation code:

window.__date__ = new Date();
window.__luxon__ = luxon.DateTime.fromJSDate(__date__);
window.__moment__ = moment(__date__);
window.__dayjs__ = dayjs(__date__);

Tests:

datefns
dateFns.addYears(__date__, 2);
luxon
__luxon__.plus({ years: 2 });
moment
__moment__.add(2, 'year');
dayjs
__dayjs__.add(2, "year");