npm package: @stdlib/time-days-in-month-cli
Description: Determine the number of days in a month.
Author: The Stdlib Authors
Latest version: 0.2.3

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# daysInMonth

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

> Determine the number of days in a month.











<section class="cli">



<section class="installation">

## Installation

To use as a general utility, install the CLI package globally

```bash
npm install -g @stdlib/time-days-in-month-cli
```

</section>

<!-- CLI usage documentation. -->

<section class="usage">

## Usage

```text
Usage: days-in-month [options] [month] [year]

Options:

  -h,    --help                Print this message.
  -V,    --version             Print the package version.
```

</section>

<!-- /.usage -->

<section class="examples">

## Examples

```bash
$ days-in-month
<number>
```

For a specific month,

```bash
$ days-in-month 2
<number>
```

For a specific month and year,

```bash
$ days-in-month 2 2016
29
```

</section>

<!-- /.examples -->

</section>

<!-- /.cli -->

<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->

<section class="related">

## See Also

-   <span class="package-name">[`@stdlib/time-days-in-month`][@stdlib/time-days-in-month]</span><span class="delimiter">: </span><span class="description">determine the number of days in a month.</span>
-   <span class="package-name">[`@stdlib/time-days-in-year`][@stdlib/time/days-in-year]</span><span class="delimiter">: </span><span class="description">determine the number of days in a year according to the Gregorian calendar.</span>

</section>

<!-- /.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">

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

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

[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/time-days-in-month/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/time-days-in-month?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-days-in-month#cli
[cli-url]: https://github.com/stdlib-js/time-days-in-month/tree/cli
[@stdlib/time-days-in-month]: https://www.npmjs.com/package/@stdlib/time-days-in-month

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

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

[date-object]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date

<!-- <related-links> -->

[@stdlib/time/days-in-year]: https://www.npmjs.com/package/@stdlib/time-days-in-year

<!-- </related-links> -->

</section>

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