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hoursInMonth

Determine the number of hours in a month.

Installation

npm install @stdlib/time-hours-in-month

Alternatively,

• To load the package in a website via a script tag without installation and bundlers, use the ES Module available on the esm branch (see README).
• If you are using Deno, visit the deno branch (see README for usage intructions).
• For use in Observable, or in browser/node environments, use the Universal Module Definition (UMD) build available on the umd branch (see README).
• To use as a general utility for the command line, install the corresponding CLI package globally.

The branches.md file summarizes the available branches and displays a diagram illustrating their relationships.

To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.

Usage

var hoursInMonth = require( '@stdlib/time-hours-in-month' );

hoursInMonth( [month[, year]] )

Returns the number of hours in a month.

var num = hoursInMonth();
// returns <number>

By default, the function returns the number of hours in the current month of the current year (according to local time). To determine the number of hours for a particular month and year, provide month and year arguments.

var num = hoursInMonth( 2 );
// returns <number>

num = hoursInMonth( 2, 2016 );
// returns 696

num = hoursInMonth( 2, 2017 );
// returns 672

A month may be either a month's integer value, three letter abbreviation, or full name (case insensitive).

var num = hoursInMonth( 2, 2016 );
// returns 696

num = hoursInMonth( 'feb', 2016 );
// returns 696

num = hoursInMonth( 'february', 2016 );
// returns 696

The function also supports providing a Date object.

var num = hoursInMonth( new Date() );
// returns <number>

Notes

• The function's return value is a generalization and does not take into account inaccuracies due to daylight savings conventions, crossing timezones, or other complications with time and dates.

Examples

var hoursInMonth = require( '@stdlib/time-hours-in-month' );

var v;
var i;

for ( i = 0; i < 2021; i++ ) {
    v = hoursInMonth( 'feb', i );
    console.log( 'In the year %d, February has %d hours.', i, v );
}

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CLI

Installation

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

npm install -g @stdlib/time-hours-in-month-cli

Usage

Usage: hours-in-month [options] [month] [year]

Options:

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

Examples

$ hours-in-month
<number>

For a specific month,

$ hours-in-month 2
<number>

For a specific month and year,

$ hours-in-month 2 2016
696

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See Also

• @stdlib/time-hours-in-year: determine the number of hours in a year according to the Gregorian calendar.

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Notice

This package is part of 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, see the main project repository.

Community

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License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.