@stdlib/time-day-of-quarter

dayOfQuarter

Determine the day of the quarter.

Installation

npm install @stdlib/time-day-of-quarter

Usage

var dayOfQuarter = require( '@stdlib/time-day-of-quarter' );

dayOfQuarter( [month[, day, year]] )

Returns the day of the quarter.

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

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

var num = dayOfQuarter( 12, 31, 2016 );
// returns 92

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

var num = dayOfQuarter( 12, 31, 2016 );
// returns 92

num = dayOfQuarter( 'dec', 31, 2016 );
// returns 92

num = dayOfQuarter( 'december', 31, 2016 );
// returns 92

The function also supports providing a Date object.

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

Examples

var quarterOfYear = require( '@stdlib/time-quarter-of-year' );
var dayOfQuarter = require( '@stdlib/time-day-of-quarter' );

var months;
var day;
var yr;
var q;
var v;
var i;

months = [
    'January',
    'February',
    'March',
    'April',
    'May',
    'June',
    'July',
    'August',
    'September',
    'October',
    'November',
    'December'
];

yr = 2016;
day = 9;

for ( i = 0; i < months.length; i++ ) {
    q = quarterOfYear( months[ i ] );
    v = dayOfQuarter( months[ i ], day, yr );
    console.log( 'In the year %d, %s %d is day number %d of Q%d.', yr, months[ i ], day, v, q );
}

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CLI

Installation

To use the module as a general utility, install the module globally

npm install -g @stdlib/time-day-of-quarter

Usage

Usage: day-of-quarter [options] [<month> <day> <year>]

Options:

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

Examples

$ day-of-quarter
<number>

For a specific date,

$ day-of-quarter 12 31 2016
92

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See Also

• @stdlib/time/day-of-year: determine the day of the year.

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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 © 2016-2022. The Stdlib Authors.