npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

date-time-js

v1.0.6

Published

A lightweight TypeScript library which parses, formats and manipulates dates in various cultures.

Downloads

335

Readme

DateTimeJS

NPM Version NPM Downloads

Overview

A lightweight TypeScript library which parses, formats and manipulates dates in various cultures.

Download

Download it using npm:

npm install date-time-js --save

Getting started

For TypeScript projects:
import { DateTime } from 'date-time-js';

For JavaScript projects:
<script src="node_modules/source/date-time.js"></script>

Usage

Parsing

Supports cultures: en-GB, en-US, ru-RU, uk-UA.

new DateTime('7')                    // '2015-02-07T00:00:00Z' (Takes a current year and month)
new DateTime('1/7')                  // '2015-07-01T00:00:00Z' (Takes a current year)
new DateTime('1/7/87')               // '1987-07-01T00:00:00Z'
new DateTime('010787')               // '1987-07-01T00:00:00Z'
new DateTime('1/7/15')               // '2015-07-01T00:00:00Z'
new DateTime('1/7/1987')             // '1987-07-01T00:00:00Z'
new DateTime('1.7.1987')             // '1987-07-01T00:00:00Z'
new DateTime('1-7-1987')             // '1987-07-01T00:00:00Z'
new DateTime('1 7 1987')             // '1987-07-01T00:00:00Z'
new DateTime('01071987')             // '1987-07-01T00:00:00Z'

new DateTime('2015/1/7', 'en-GB')    // '2015-07-01T00:00:00Z'
new DateTime('2015/1/7', 'en-US')    // '2015-01-07T00:00:00Z'

new DateTime('21 Feb 15')            // '2015-02-21T00:00:00Z'
new DateTime('21 February 15')       // '2015-02-21T00:00:00Z'
new DateTime('21 February 2015')     // '2015-02-21T00:00:00Z'
new DateTime('2015 February 21')     // '2015-02-21T00:00:00Z'

new DateTime('21 фев 15')            // '2015-02-21T00:00:00Z'
new DateTime('21 фев 2015')          // '2015-02-21T00:00:00Z'
new DateTime('21 февраль 15')        // '2015-02-21T00:00:00Z'
new DateTime('21 февраля 15')        // '2015-02-21T00:00:00Z'
new DateTime('21 февраль 2015')      // '2015-02-21T00:00:00Z'
new DateTime('2015 февраль 21')      // '2015-02-21T00:00:00Z'

new DateTime('21 лют 15')            // '2015-02-21T00:00:00Z'
new DateTime('21 лютий 15')          // '2015-02-21T00:00:00Z'

new DateTime('Feb 21, 15')           // '2015-02-21T00:00:00Z'
new DateTime('Feb21,15')             // '2015-02-21T00:00:00Z'
new DateTime('Feb 21, 2015')         // '2015-02-21T00:00:00Z'
new DateTime('Feb21,2015')           // '2015-02-21T00:00:00Z'

new DateTime('1987-07-01T00:00:00Z') // '1987-07-01T00:00:00Z'

Manipulation

Addition

new DateTime('2015-02-21T10:45:30.000Z').add(2, 'millisecond')      // '2015-02-21T10:45:30.002Z'
new DateTime('2015-02-21T10:45:30Z').add(2, 'second')               // '2015-02-21T10:45:32Z'
new DateTime('2015-02-21T10:45:30Z').add(2, 'minute')               // '2015-02-21T10:47:30Z'
new DateTime('2015-02-21T10:45:30Z').add(2, 'hour')                 // '2015-02-21T12:45:30Z'
new DateTime('2015-02-21T10:45:30Z').add(2, 'day')                  // '2015-02-23T10:45:30Z'
new DateTime('2015-02-21T10:45:30Z').add(2, 'month')                // '2015-04-21T10:45:30Z'
new DateTime('2015-02-21T10:45:30Z').add(2, 'year')                 // '2017-02-21T10:45:30Z'

Subtraction

new DateTime('2015-02-21T10:45:30.500Z').subtract(2, 'millisecond') // '2015-02-21T10:45:30.498Z'
new DateTime('2015-02-21T10:45:30Z').subtract(2, 'second')          // '2015-02-21T10:45:28Z'
new DateTime('2015-02-21T10:45:30Z').subtract(2, 'minute')          // '2015-02-21T10:43:30Z'
new DateTime('2015-02-21T10:45:30Z').subtract(2, 'hour')            // '2015-02-21T08:45:30Z'
new DateTime('2015-02-21T10:45:30Z').subtract(2, 'day')             // '2015-02-19T10:45:30Z'
new DateTime('2015-02-21T10:45:30Z').subtract(1, 'month')           // '2015-01-21T10:45:30Z'
new DateTime('2015-02-21T10:45:30Z').subtract(2, 'year')            // '2013-02-21T10:45:30Z'

Start of time

new DateTime('2015-02-21T10:45:35.500Z').startOf('second')          // '2015-02-21T10:45:35.000Z'
new DateTime('2015-02-21T10:45:35.500Z').startOf('minute')          // '2015-02-21T10:45:00.000Z'
new DateTime('2015-02-21T10:45:35.500Z').startOf('hour')            // '2015-02-21T10:00:00.000Z'
new DateTime('2015-02-21T10:45:35.500Z').startOf('day')             // '2015-02-21T00:00:00.000Z'
new DateTime('2015-02-21T10:45:35.500Z').startOf('month')           // '2015-02-01T00:00:00.000Z'
new DateTime('2015-02-21T10:45:35.500Z').startOf('year')            // '2015-01-01T00:00:00.000Z'

End of time

new DateTime('2015-01-01T00:00:00.000Z').endOf('second')            // '2015-01-01T00:00:00.999Z'
new DateTime('2015-01-01T00:00:00.000Z').endOf('minute')            // '2015-01-01T00:00:59.999Z'
new DateTime('2015-01-01T00:00:00.000Z').endOf('hour')              // '2015-01-01T00:59:59.999Z'
new DateTime('2015-01-01T00:00:00.000Z').endOf('day')               // '2015-01-01T23:59:59.999Z'
new DateTime('2015-01-01T00:00:00.000Z').endOf('month')             // '2015-01-31T23:59:59.999Z'
new DateTime('2015-01-01T00:00:00.000Z').endOf('year')              // '2015-12-31T23:59:59.999Z'

Getting and setting

new DateTime('2015-02-21T10:45:30.500Z').millisecond()               // 500
new DateTime('2015-02-21T10:45:30.000Z').millisecond(10)             // '2015-02-21T10:45:30.010Z'

new DateTime('2015-02-21T10:45:30Z').second()                        // 30
new DateTime('2015-02-21T10:45:30Z').second(10)                      // '2015-02-21T10:45:10Z'

new DateTime('2015-02-21T10:45:00Z').minute()                        // 45
new DateTime('2015-02-21T10:45:30Z').minute(10)                      // '2015-02-21T10:10:30Z'

new DateTime('2015-02-21T10:45:00Z').hour()                          // 10
new DateTime('2015-02-21T10:45:30Z').hour(20)                        // '2015-02-21T20:45:30Z'

new DateTime('2015-02-21T10:45:00Z').date()                          // 21
new DateTime('2015-02-21T10:45:30Z').date(25)                        // '2015-02-25T10:45:30Z'

new DateTime('2015-02-21T10:45:00Z').month()                         // 1
new DateTime('2015-02-21T10:45:30Z').month(3)                        // '2015-04-21T10:45:30Z'

new DateTime('2015-02-21T10:45:00Z').year()                          // 2015
new DateTime('2015-02-21T10:45:30Z').year(2010)                      // '2010-02-21T10:45:30Z'

new DateTime('2015-02-21T10:45:00-03:00').offset()                   // -180
new DateTime('2015-02-21T10:45:30Z').offset(-180)                    // '2015-02-21T10:45:00-03:00'  

Chaining

let formattedDate = new DateTime('2015-02-21T10:45:30Z')
    .millisecond(10)
    .second(10)
    .minute(10)
    .hour(20)
    .date(25)
    .month(3)
    .year(2010)
    .add(2, 'millisecond')
    .subtract(3, 'millisecond')
    .offset(-180)
    .format('yyyy-MM-ddTHH:mm:ss.fffK');    // '2010-04-25T20:10:10.009-03:00'

Copying

let date = new DateTime('2015-02-21T10:45:00Z');
let dateCopy = date.copy();

Comparison

new DateTime('2016-09-26T00:00:00Z').difference('2016-09-26T00:00:01Z')                        // -1000
new DateTime('2016-09-26T00:00:00Z').isEqual('2016-09-26T00:00:00Z')                           // true
new DateTime('2016-09-26T00:00:00Z').isLess('2016-09-26T00:00:00Z')                            // false
new DateTime('2016-09-26T00:00:00Z').isLessOrEqual('2016-09-26T00:00:01Z')                     // true
new DateTime('2016-09-26T00:00:00Z').isGreater('2016-09-26T00:00:00Z')                         // false
new DateTime('2016-09-26T00:00:00Z').isGreaterOrEqual('2016-09-26T00:00:00Z')                  // true
new DateTime('2016-08-15T00:00:00Z').isBetween('2016-08-01T00:00:00Z', '2016-09-01T00:00:00Z') // true

Formatting

new DateTime('1/7/1987').format()            // '1987-07-01T00:00:00Z'
new DateTime('1/7/1987').format('yyyy-M-dd') // '1987-7-01'

Standard date and time format specifiers

| Format specifier | Description | Examples | | :---- | :---- | :---- | | f | The milliseconds, from 0 to 9. | 2015-02-01T03:05:09.4Z -> 4 | | ff | The milliseconds, from 00 to 99. | 2015-02-01T03:05:09.49Z -> 49 | | fff | The milliseconds, from 000 to 999. | 2015-02-01T03:05:09.499Z -> 499 | | s | The second, from 0 through 59. | 2015-02-01T03:05:09Z -> 92015-02-21T13:45:30Z -> 30 | | ss | The second, from 00 through 59. | 2015-02-01T03:05:09Z -> 092015-02-21T13:45:30Z -> 30 | | m | The minute, from 0 through 59. | 2015-02-01T03:05:30Z -> 52015-02-21T13:45:30Z -> 45 | | mm | The minute, from 00 through 59. | 2015-02-01T03:05:30Z -> 052015-02-21T13:45:30Z -> 45 | | HH | The hour, using a 24-hour clock from 00 to 23. | 2015-02-01T03:45:30Z -> 032015-02-21T13:45:30Z -> 13 | | d | The day of the month, from 1 through 31. | 2015-02-01T13:45:30Z -> 12015-02-21T13:45:30Z -> 21 | | dd | The day of the month, from 01 through 31. | 2015-02-01T13:45:30Z -> 012015-02-21T13:45:30Z -> 21 | | ddd | The abbreviated name of the day of the week. | 2015-02-21T13:45:30Z -> Mon (en-US)2015-02-21T13:45:30Z -> пн (ru-RU) | | dddd | The full name of the day of the week. | 2015-02-21T13:45:30Z -> Monday (en-US)2015-02-21T13:45:30Z -> понедельник (ru-RU) | | M | The month, from 1 through 12. | 2015-02-21T13:45:30Z -> 2 | | MM | The month, from 01 through 12. | 2015-02-21T13:45:30Z -> 02 | | MMM | The abbreviated name of the month. | 2015-02-21T13:45:30Z -> Feb (en-US)2015-02-21T13:45:30Z -> фев (ru-RU) | | MMMM | The full name of the month. | 2015-02-21T13:45:30Z -> February (en-US)2015-02-21T13:45:30Z -> февраль (ru-RU) | | yy | The year, from 00 to 99. | 1987-02-21T13:45:30Z -> 872015-02-21T13:45:30Z -> 152000-02-21T13:45:30Z -> 00 | | yyyy | The year as a four-digit number. | 1987-02-21T13:45:30Z -> 19872015-02-21T13:45:30Z -> 20152000-02-21T13:45:30Z -> 2000 | | K | Time zone information. | 2015-02-21T13:45:30Z -> Z2015-02-21T13:45:30-07:00 -> -07:00 |

Miscellaneous

new DateTime()                                    // Today
DateTime.createEmpty().isEmpty()                  // true

new DateTime('2016-09-26T00:00:00Z').isUtc()      // true
new DateTime('2016-09-26T00:00:00+01:00').isUtc() // false
new DateTime('2015-02-21T20:45:00+04:00').toUtc() // '2015-02-21T16:45:00Z'

DateTime.parseTimeZone('Z')                       // 0
DateTime.parseTimeZone('+01:00')                  // 60
DateTime.parseTimeZone('-01:00')                  // -60

DateTime.formatTimeZone(0)                        // 'Z'
DateTime.formatTimeZone(60)                       // '+01:00'
DateTime.formatTimeZone(-60)                      // '-01:00'

DateTime.isDateTime(null)                         // false
DateTime.isDateTime(new DateTime())               // true

DateTime.isDate(new Date())                       // true
DateTime.isDate('2015-02-21')                     // false

Development

  1. Install dependencies.
    npm install
  2. Run the project.
    gulp

Testing

gulp test