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JavaScript has a built-in datatype that creates dynamic dates or stores current, previous, or future dates. Date objects can be created by using the new Date() method.
Constructor
You can use 4 variants of Date constructor to create a date object. These are
- Date()
- Date(milliseconds)
- Date(dateString)
- Date(year, month, day, hours, minutes, seconds, milliseconds)
It provides methods to get and set day, month, year, hour, minute and seconds.
JavaScript Date Methods
| Method | Description |
|---|---|
| getDate() | Returns the day of the month (from 1-31) |
| getDay() | Returns the day of the week (from 0-6) |
| getFullYear() | Returns the year |
| getHours() | Returns the hour (from 0-23) |
| getMilliseconds() | Returns the milliseconds (from 0-999) |
| getMinutes() | Returns the minutes (from 0-59) |
| getMonth() | Returns the month (from 0-11) |
| getSeconds() | Returns the seconds (from 0-59) |
| getTime() | Returns the number of milliseconds since midnight Jan 1 1970, and a specified date |
| getTimezoneOffset() | Returns the time difference between UTC time and local time, in minutes |
| getUTCDate() | Returns the day of the month, according to universal time (from 1-31) |
| getUTCDay() | Returns the day of the week, according to universal time (from 0-6) |
| getUTCFullYear() | Returns the year, according to universal time |
| getUTCHours() | Returns the hour, according to universal time (from 0-23) |
| getUTCMilliseconds() | Returns the milliseconds, according to universal time (from 0-999) |
| getUTCMinutes() | Returns the minutes, according to universal time (from 0-59) |
| getUTCMonth() | Returns the month, according to universal time (from 0-11) |
| getUTCSeconds() | Returns the seconds, according to universal time (from 0-59) |
| getYear() | Deprecated. Use the getFullYear() method instead |
| now() | Returns the number of milliseconds since midnight Jan 1, 1970 |
| parse() | Parses a date string and returns the number of milliseconds since January 1, 1970 |
| setDate() | Sets the day of the month of a date object |
| setFullYear() | Sets the year of a date object |
| setHours() | Sets the hour of a date object |
| setMilliseconds() | Sets the milliseconds of a date object |
| setMinutes() | Set the minutes of a date object |
| setMonth() | Sets the month of a date object |
| setSeconds() | Sets the seconds of a date object |
| setTime() | Sets a date to a specified number of milliseconds after/before January 1, 1970 |
| setUTCDate() | Sets the day of the month of a date object, according to universal time |
| setUTCFullYear() | Sets the year of a date object, according to universal time |
| setUTCHours() | Sets the hour of a date object, according to universal time |
| setUTCMilliseconds() | Sets the milliseconds of a date object, according to universal time |
| setUTCMinutes() | Set the minutes of a date object, according to universal time |
| setUTCMonth() | Sets the month of a date object, according to universal time |
| setUTCSeconds() | Set the seconds of a date object, according to universal time |
| setYear() | Deprecated. Use the setFullYear() method instead |
| toDateString() | Converts the date portion of a Date object into a readable string |
| toGMTString() | Deprecated. Use the toUTCString() method instead |
| toISOString() | Returns the date as a string, using the ISO standard |
| toJSON() | Returns the date as a string, formatted as a JSON date |
| toLocaleDateString() | Returns the date portion of a Date object as a string, using locale conventions |
| toLocaleTimeString() | Returns the time portion of a Date object as a string, using locale conventions |
| toLocaleString() | Converts a Date object to a string, using locale conventions |
| toString() | Converts a Date object to a string |
| toTimeString() | Converts the time portion of a Date object to a string |
| toUTCString() | Converts a Date object to a string, according to universal time |
| UTC() | Returns the number of milliseconds in a date since midnight of January 1, 1970, according to UTC time |
| valueOf() | Returns the primitive value of a Date object |
Examples
open up the browser console by pressing the F12 key in Chrome and other chromium-based browsers.
var date = new Date(); console.log(date);
And another
var date = new Date(); console.log(date.getFullYear()); console.log(date.getMonth()); console.log(date.getDay()); console.log(date.getHours()); console.log(date.getMinutes()); console.log(date.getSeconds());
I saw the following
2022 2 2 20 59 34