JavaScript Date Cheatsheet
Table of Contents
The JavaScript Date constructor function and methods of Date objects.
Constructor
// Now
new Date() // returns Date object with value of now
new Date(1419785527580) // returns Date object from milliseconds since epoch
new Date('May 17, 1995 03:24:00') // Date format
new Date('2013-03-01T01:10:00') // ISO date format
new Date(2014, 2, 1, 13, 0, 59, 0) // year, month, day, hour, minute, second, milliseconds
Months are zero-indexed (eg, January is 0).
Conversion
| Method | Result |
|---|---|
d.toString() | "Mon Dec 29 2014 00:58:28 GMT+0800 (PHT)" |
d.toTimeString() | "00:58:46 GMT+0800 (PHT)" |
d.toUTCString() | "Sun, 28 Dec 2014 16:58:59 GMT" |
| — | — |
d.toDateString() | "Thu Jan 10 2013" |
d.toISOString() | "2013-01-09T16:00:00.000Z" |
d.toLocaleString() | "12/29/2014, 12:57:31 AM" |
d.toLocaleTimeString() | "12:57:31 AM" |
| — | — |
d.getTime() | 1419785527580 |
Getters
| Method | Result |
|---|---|
.getDate() | 1..31 |
.getDay() | 0..6 (sun..sat) |
.getFullYear() | 2014 |
.getMonth() | 0..11 |
| — | — |
.getHours() | |
.getMinutes() | |
.getSeconds() | |
.getMilliseconds() | |
| — | — |
.getTime() | ms since epoch |
.getTimezoneOffset() |
UTC versions are also available (eg, .getUTCDate(), .getUTCDay(), etc).
Setters
| Method | Result |
|---|---|
.setDate (val) | |
.setDay (val) | |
.setFullYear (val) | |
.setMonth (val) | |
| — | — |
.setHours (val) | |
.setMinutes (val) | |
.setSeconds (val) | |
.setMilliseconds (val) | |
| — | — |
.setTime (val) | |
.setTimezoneOffset (val) |
UTC versions are also available (eg, .setUTCDate(), .setUTCDay(), etc).