The simplest, most intuitive date and time library.

npm install date-and-time

import { format } from 'date-and-time';

format(new Date(), 'ddd, MMM DD YYYY');
// => Wed, Jul 09 2025

const { format } = require('date-and-time');

format(new Date(), 'ddd, MMM DD YYYY');
// => Wed, Jul 09 2025

<script type="module">
  import { format } from 'https://cdn.jsdelivr.net/npm/date-and-time/dist/index.js';

  console.log(format(new Date(), 'YYYY/MM/DD'));
</script>

<script type="module">
  import { format } from 'https://unpkg.com/date-and-time/dist/index.js';

  console.log(format(new Date(), 'YYYY/MM/DD'));
</script>

Version 4.x has been completely rewritten in TypeScript and some features from 3.x are no longer compatible. The main changes are as follows:

• The timezone and timespan plugins have been integrated into the main library
• Tree shaking is now supported
• Supports ES2021 and no longer supports older browsers

For details, please refer to migration.md.

For comprehensive documentation and examples, visit: GitHub Pages

MIT

Contributions are welcome! Please feel free to submit a Pull Request.