ES6 - Date


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The Date object is a datatype built into the JavaScript language. Date objects are created with the new Date () as shown in the following syntax.

Once a Date object is created, a number of methods allow you to operate on it. Most methods simply allow you to get and set the year, month, day, hour, minute, second, and millisecond fields of the object, using either local time or UTC (universal, or GMT) time.

The ECMAScript standard requires the Date object to be able to represent any date and time, to millisecond precision, within 100 million days before or after 1/1/1970. This is a range of plus or minus 273,785 years, so JavaScript can represent date and time till the year 275755.

You can use any of the following syntax to create a Date object using Date () constructor.

new Date( ) 
new Date(milliseconds) 
new Date(datestring) 
new Date(year,month,date[,hour,minute,second,millisecond ])

Note − Parameters in the brackets are always optional.

Date Properties

Here is a list of the properties of the Date object along with their description.

Sr.No Property & Description
1 constructor

Specifies the function that creates an object's prototype

2 prototype

The prototype property allows you to add properties and methods to an object

Date Methods

Following is a list of different date methods along with the description.

Sr.No Method & Description
1 Date()

Returns today's date and time

2 getDate()

Returns the day of the month for the specified date according to the local time

3 getDay()

Returns the day of the week for the specified date according to the local time

4 getFullYear()

Returns the year of the specified date according to the local time

5 getHours()

Returns the hour in the specified date according to the local time

6 getMilliseconds()

Returns the milliseconds in the specified date according to the local time

7 getMinutes()

Returns the minutes in the specified date according to the local time

8 getMonth()

Returns the month in the specified date according to the local time

9 getSeconds()

Returns the seconds in the specified date according to the local time

10 getTime()

Returns the numeric value of the specified date as the number of milliseconds since January 1, 1970, 00:00:00 UTC

11 getTimezoneOffset()

Returns the time-zone offset in minutes for the current locale

12 getUTCDate()

Returns the day (date) of the month in the specified date according to the universal time

13 getUTCDay()

Returns the day of the week in the specified date according to the universal time

14 getUTCFullYear()

Returns the year in the specified date according to the universal time

15 getutcHours()

Returns the hours in the specified date according to the universal time

16 getUTCMilliseconds()

Returns the milliseconds in the specified date according to the universal time

17 getUTCMinutes()

Returns the minutes in the specified date according to the universal time

18 getUTCMonth()

Returns the month in the specified date according to the universal time

19 getUTCSeconds()

Returns the seconds in the specified date according to the universal time

20 setDate()

Sets the day of the month for a specified date according to the local time

21 setFullYear()

Sets the full year for a specified date according to the local time

22 setHours()

Sets the hours for a specified date according to the local time

23 setMilliseconds()

Sets the milliseconds for a specified date according to the local time

24 setMinutes()

Sets the minutes for a specified date according to the local time

25 setMonth()

Sets the month for a specified date according to the local time

26 setSeconds()

Sets the seconds for a specified date according to the local time

27 setTime()

Sets the Date object to the time represented by a number of milliseconds since January 1, 1970, 00:00:00 UTC

28 setUTCDate()

Sets the Date object to the time represented by a number of milliseconds since January 1, 1970, 00:00:00 UTC

29 setUTCFullYear()

Sets the full year for a specified date according to the universal time

30 setUTCHours()

Sets the hour for a specified date according to the universal time

31 setUTCMilliseconds()

Sets the milliseconds for a specified date according to the universal time

32 setUTCMinutes()

Sets the minutes for a specified date according to the universal time

33 setUTCMonth()

Sets the month for a specified date according to the universal time

34 setUTCSeconds()

Sets the seconds for a specified date according to the universal time

35 todatestring()

Returns the "date" portion of the Date as a human-readable string

36 toLocaleDateString()

Returns the "date" portion of the Date as a string, using the current locale's conventions

37 toLocaleString()

Converts a date to a string, using the current locale's conventions

38 toLocaleTimeString()

Returns the "time" portion of the Date as a string, using the current locale's conventions

39 toString()

Returns a string representing the specified Date object

40 toTimeString()

Returns the "time" portion of the Date as a human-readable string

41 toUTCString()

Converts a date to a string, using the universal time convention

42 valueOf()

Returns the primitive value of a Date object



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