HTML | DOM Input Datetime max Property

The Input Datetime max property is used for setting or returning the value of the max attribute of a datetime field.
The Input Datetime max attribute returns a string which represents the maximum date and time allowed.


  • For returning the max property:
  • For setting the max property:
    datetimeObject.max = YYYY-MM-DDThh:mm:ssTZD

Property Value:

  • YYYY-MM-DDThh:mm:ssTZD : It is used to specify the maximum date and time allowed.
    • YYYY : It specifies the year.
    • MM : It specifies the month.
    • DD : It specifies the day of the month.
    • T : It specifies the separator if time is also entered.
    • hh : It specifies the hour.
    • mm : It specifies the minutes.
    • ss : It specifies the seconds.
    • TZD : It specifies the Time Zone Designator.

Below program illustrates the Datetime Max property :

Getting the maximum date and time allowed for a datetime field .





<!DOCTYPE html>
    <title>Input Datetime max Property in HTML</title>
        h1 {
            color: green;
        h2 {
            font-family: Impact;
        body {
            text-align: center;
    <h2>Input Datetime max Property</h2>
    <p>The range of date and time accepted is between
      2019-02-18 12:00 AM and 2019-02-20 12:00 AM:</p>
        <input type="datetime" id="Test_Datetime" 
        min="2019-02-18T12:00Z" max="2019-02-20T12:00Z">
        <p>To return the max range of the datetime field,
               double click the "Return Max" button.</p>
        <button ondblclick="My_Datetime()">Return Max</button>
        <p id="test"></p>
            function My_Datetime() {
                var d = document.getElementById("Test_Datetime").max;
                document.getElementById("test").innerHTML = d;



After clicking the button

Supported Web Browsers

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


My Personal Notes arrow_drop_up

I am a technology enthusiast who has a keen interest in programming I am pursuing Engineering in Computer Science from GEU, Dehradun I like to unwind by watching movies and English sitcomsI have a keen interest in music

If you like GeeksforGeeks and would like to contribute, you can also write an article using or mail your article to See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.

Article Tags :
Practice Tags :

Be the First to upvote.

Please write to us at to report any issue with the above content.