JavaScript Date prototype Property

Last Updated : 11 Jul, 2025

The date.prototype property represents the prototype for the Date constructor. The prototype allows adding new properties, and methods.

Below are examples of Date prototype Property. 

Example:  

javascript 
  var birthday = new Date('June 21, 2018 16:44:23');
  var date1 = birthday.getDate(); 
  var day1 = birthday.getDay(); 
  var year1 = birthday.getFullYear(); 
  var hour1 = birthday.getHours(); 
  var ms1 = birthday.getMilliseconds(); 
  var m1 = birthday.getMinutes(); 
  var mth1 = birthday.getMonth(); 
  var time1 = birthday.getTime(); 
  var s1 = birthday.getSeconds(); 
  var offset = birthday.getTimezoneOffset(); 
  var date2 = birthday.getUTCDate(); 
  var day2 = birthday.getUTCDay(); 
  var year2 = birthday.getUTCFullYear(); 
  var hour2 = birthday.getUTCHours(); 
  var ms2 = birthday.getUTCMilliseconds();
  var um1 = birthday.getUTCMinutes();
  var umth = birthday.getUTCMonth();
  var us = birthday.getUTCSeconds();

  console.log(date1);
  console.log(day1);
  console.log(year1);
  console.log(hour1);
  console.log(ms1);
  console.log(m1);
  console.log(mth1);
  console.log(time1);
  console.log(s1);
  console.log(offset);
  console.log(date2);
  console.log(day2);
  console.log(year2);
  console.log(hour2);
  console.log(ms2);
  console.log(um1);
  console.log(umth);
  console.log(us);

Output: 

21
4
2018
16
0
44
5
1529579663000
23
-330
21
4
2018
11
0
14
5
23

It has the following methods:

  • getDate():This method will return the day of the month for the specified date according to the local time. 
  • getDay():This method will return the day of the week (0 for Sunday and 6 for Saturday) for the specified date according to the local time.
  • getFullYear(): It returns the year for the specified date according to local time. 
  • getHours(): It returns the hour(0-23) for the specified date according to local time. 
  • getMilliseconds: It returns the milliseconds (0-999) for the specified date according to local time. 
  • getMinutes(): It returns the minutes (0-59) for the specified date according to local time.  
  • getMonth(): It returns the month (0-11) for the specified date according to local time. 
  • getSeconds(): It returns the seconds(0-59) for the specified date according to local time.  
  • getTime(): It returns the number of milliseconds elapsed since January 01, 1970 00:00:00 UTC. It is negative for time 
    before the given time. 
  • getTimezoneOffset(): It returns the timezone offset in minutes for current location. 
  • getUTCDate(): It returns the date of the month (1-31) for the specified date according to universal time.  
  • getUTCDay(): It returns the day of the week (0-6) for the specified date according to universal time.  
  • getUTCFullYear(): It returns the year for the specified date according to universal time.  
  • getUTCHours(): It returns the hours (0-23) for the specified date according to universal time. 
  • getUTCMilliseconds(): It returns the milliseconds(0-999) for the specified date according to universal time.  
  • getUTCMinutes(): It returns the minutes (0-59) for the specified date according to universal time. 
  • getUTCMonth(): It returns the month (0-11) for the specified date according to universal time. 
  • getUTCSeconds(): It returns the seconds (0-59) for the specified date according to universal time. 

It also has some other methods which can be used to convert the date to different formats: 

  • toDateString(): Returns the "date" portion of the Date as a human-readable string.
  • toGMTString(): Returns a string representing the Date based on the GMT (UT) time zone.
  • toLocaleFormat(): Converts a date to a string, using a format string.
  • toLocalestring(): Returns a string with a locality-sensitive representation of this date.
  • toString(): Returns a string representing the specified Date object.
  • toTimeString(): Returns the "time" portion of the Date as a human-readable string.
  • valueOf(): Returns the primitive value of a Date object.

We have a complete list of Javascript Date Objects, to check those please go through this Javascript Date Object Complete reference article.

Supported Browsers: The browsers supported by JavaScript Date prototype Property are listed below:

  • Google Chrome
  • Internet Explorer
  • Mozilla Firefox
  • Opera
  • Safari

We have a Cheat Sheet on Javascript where we covered all the important topics of Javascript to check those please go through Javascript Cheat Sheet-A Basic guide to JavaScript.

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