npm package: @stdlib/time-duration2ms
Description: Convert a duration string to milliseconds.
Author: The Stdlib Authors
Latest version: 0.2.3

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<details>
  <summary>
    About stdlib...
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# duration2ms

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] <!-- [![dependencies][dependencies-image]][dependencies-url] -->

> Convert a duration string to milliseconds.

<section class="installation">

## Installation

```bash
npm install @stdlib/time-duration2ms
```

</section>

<section class="usage">

## Usage

```javascript
var duration2ms = require( '@stdlib/time-duration2ms' );
```

#### duration2ms( str )

Converts a duration string to milliseconds.

```javascript
var ms = duration2ms( '1d' );
// returns 86400000

ms = duration2ms( '1d2h3m4s5ms' );
// returns 93784005
```

</section>

<!-- /.usage -->

<section class="notes">

## Notes

-   A duration string is a string containing a sequence of time units. A time unit is a nonnegative integer followed by a unit identifier. The following unit identifiers are supported:

    -   `d`: days
    -   `h`: hours
    -   `m`: minutes
    -   `s`: seconds
    -   `ms`: milliseconds

    For example, the string `1m3s10ms` is a duration string containing three time units: `1m` (1 minute), `3s` (3 seconds), and `10ms` (10 milliseconds). The string `60m` is a duration string containing a single time unit: `60m` (60 minutes).

-   Duration strings are case insensitive. For example, the string `1M3S10MS` is equivalent to `1m3s10ms`.

</section>

<!-- /.notes -->

<section class="examples">

## Examples

<!-- eslint no-undef: "error" -->

```javascript
var duration2ms = require( '@stdlib/time-duration2ms' );

var ms = duration2ms( '5s20ms' );
// returns 5020

ms = duration2ms( '1h' );
// returns 3600000

ms = duration2ms( '1m2s3ms' );
// returns 62003
```

</section>

<!-- /.examples -->



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<section class="related">

## See Also

-   <span class="package-name">[`@stdlib/time-duration2ms-cli`][@stdlib/time-duration2ms-cli]</span><span class="delimiter">: </span><span class="description">CLI package for use as a command-line utility.</span>


<!-- /.related -->

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<section class="main-repo" >

* * *

## Notice

This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].

#### Community

[![Chat][chat-image]][chat-url]

---

## License

See [LICENSE][stdlib-license].


## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

</section>

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<section class="links">

[@stdlib/time-duration2ms-cli]: https://www.npmjs.com/package/@stdlib/time-duration2ms-cli

[npm-image]: http://img.shields.io/npm/v/@stdlib/time-duration2ms.svg
[npm-url]: https://npmjs.org/package/@stdlib/time-duration2ms

[test-image]: https://github.com/stdlib-js/time-duration2ms/actions/workflows/test.yml/badge.svg?branch=v0.2.3
[test-url]: https://github.com/stdlib-js/time-duration2ms/actions/workflows/test.yml?query=branch:v0.2.3

[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/time-duration2ms/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/time-duration2ms?branch=main

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[stdlib]: https://github.com/stdlib-js/stdlib

[stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors

[cli-section]: https://github.com/stdlib-js/time-duration2ms#cli
[cli-url]: https://github.com/stdlib-js/time-duration2ms/tree/cli
[@stdlib/time-duration2ms]: https://github.com/stdlib-js/time-duration2ms/tree/main

[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules

[deno-url]: https://github.com/stdlib-js/time-duration2ms/tree/deno
[deno-readme]: https://github.com/stdlib-js/time-duration2ms/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/time-duration2ms/tree/umd
[umd-readme]: https://github.com/stdlib-js/time-duration2ms/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/time-duration2ms/tree/esm
[esm-readme]: https://github.com/stdlib-js/time-duration2ms/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/time-duration2ms/blob/main/branches.md

[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/time-duration2ms/main/LICENSE

[standard-streams]: https://en.wikipedia.org/wiki/Standard_streams

[mdn-regexp]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions

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</section>

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