HTML | DOM Time dateTime Property

Last Updated : 22 Apr, 2019

The DOM Time dateTime Property is used to set or return the value of the DateTime attribute of the <time> Element. The date-time is inserted in the format YYYY-MM-DDThh:mm:ssTZD.

Syntax:

It is used to return the DateTime property.
```
timeObject.dateTime
```

It is used to set the dateTime property.

timeObject.dateTime = YYYY -MM-DDThh:mm:ssTZD

Property Values:

YYYY-MM-DDThh:mm:ssTZD YYYY-MM-DDThh:mm:ssTZD It specifies the date and time.

Explanation:

YYYY – year (e.g. 2009)
MM – month (e.g. 01 for January)
DD – day of the month (e.g. 04)
T – a required separator
hh – hour (e.g. 20 for 8.00pm)
mm – minutes (e.g. 35)
ss – seconds (e.g. 09)
TZD – Time Zone Designator (Z denotes Zulu, also known as Greenwich Mean Time)

Return value: It returns a string value which represent the date and time.

Example-1: This Example sets the dateTime Property.

<!DOCTYPE html> 
<html> 
  
<head> 
    <title> 
        HTML DOM Time dateTime Property 
    </title> 
</head> 
  
<body style="text-align:center;"> 
    <h1>GeeksforGeeks</h1> 
  
    <h2> 
    DOM Time dateTime Property 
</h2> 
  
    <p> 
        <time id="GFG" 
              datetime="2018-11-21T15:55:03Z"> 
        </time> 
    </p> 
  
    <button onclick="myGeeks()"> 
        Submit 
    </button> 
  
    <p id="sudo"></p> 
  
    <script> 
        function myGeeks() { 
            var g = document.getElementById( 
                "GFG").dateTime = "2013-11-15T21:40:07Z"; 
  
            document.getElementById("sudo").innerHTML = 
                "The value of the dateTime attribute was changed to " 
            + g; 
        } 
    </script> 
  
</body> 
  
</html> 

Output:
Before Clicking On Button:

After Clicking On Button:

Example-2:This Example returns the dateTime Property.

<!DOCTYPE html> 
<html> 
  
<head> 
    <title> 
        HTML DOM Time dateTime Property 
    </title> 
  
</head> 
  
<body style="text-align:center;"> 
    <h1> 
    GeeksforGeeks 
</h1> 
  
    <h2> 
    DOM Time dateTime Property 
</h2> 
  
    <time id="GFG" 
          datetime="2018-11-21T15:55:03Z"> 
    </time> 
  
    <button onclick="myGeeks()">  
      Submit 
  </button> 
  
    <p id="sudo"></p> 
  
    <script> 
        function myGeeks() { 
            var g =  
                document.getElementById( 
                  "GFG").dateTime; 
            
            document.getElementById( 
              "sudo").innerHTML = g; 
        } 
    </script> 
  
</body> 
  
</html> 