Run results for: JS Date libraries 3

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.1 Safari/605.1.15

Browser: Safari 26

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 8 months ago

vanilla

361.8M/s

dayjs

141K/s

luxon

99K/s

View exact numbers

Test name	Executions per second
✓ vanilla	361,796,000 Ops/sec
dayjs	141,448 Ops/sec
luxon	99,086 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://unpkg.com/dayjs@1.8.21/dayjs.min.js"></script>
<script src="https://unpkg.com/dayjs@1.8.21/plugin/isBetween.js"></script>

Script Preparation code:

dayjs.extend(window.dayjs_plugin_isBetween)
window.__date__ = new Date('2000-01-06T03:24:11');
window.__another_date__ = new Date('2000-01-30T03:24:11');
window.__another_month__ = new Date('2000-02-01T00:00:00');
window.__another_year__ = new Date('1999-01-06T03:24:11');
window.__saturday__ = new Date('2021-05-01T03:24:11');
window.__sunday__ = new Date('2021-05-02T03:24:11');
window._expected_string = '2000/01/06';
window._expected_start = '2000/01/01';
window._expected_end = '2000/01/31';
window._expected_day_of_week = 1;

window.unix = (date) => {
    return date.valueOf() / 1000;
  }

window.diffDate = (date1, date2, unit) => {
    const date1Unix = unix(date1);
    const date2Unix = unix(date2);

    switch (unit) {
      case "minute":
        return (date1Unix - date2Unix) / 60;
      case "hour":
        return (date1Unix - date2Unix) / 3600;
      case "day":
        return (date1Unix - date2Unix) / 86400;
      case "week":
        return (date1Unix - date2Unix) / 604800;
    }
  }

Tests:

luxon
var date1 = luxon.DateTime.fromJSDate(__date__); var date2 = luxon.DateTime.fromJSDate(__another_date__); date1.diff(date2, "minute"); date1.diff(date2, "hour"); date1.diff(date2, "day"); date1.diff(date2, "week");
dayjs
var date1 = dayjs(__date__); var date2 = dayjs(__another_date__); date1.diff(date2, "minute"); date1.diff(date2, "hour"); date1.diff(date2, "day"); date1.diff(date2, "week");
vanilla
var date1 = __date__; var date2 = __another_date__; diffDate(date1, date2, "minute"); diffDate(date1, date2, "hour"); diffDate(date1, date2, "day"); diffDate(date1, date2, "week");