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JavaScript | date.toLocaleTimeString()

The date.toLocaleTimeString() is an inbuilt function in JavaScript which is used to fetch the time from a given Date object.
Syntax:

 DateObj.toLocaleTimeString()

In the above syntax, DateObj is a valid Date object created using Date() constructor from which we want to fetch the time.
Parameter: This function does not take any parameter. It is just used along with a Date Object from which we want to fetch the time.
Return Values: It returns a string which is time from given Date object.
Below program illustrates the toLocaleTimeString() method:

<script>
  
  // Here a date has been assigned
  // while creating Date object
  var dateobj = new Date('July 16, 2018 05:35:32');
  
  // time from above date object is 
  // being extracted using toLocaleTimeString()
  var B = dateobj.toLocaleTimeString();
  
  // Printing time
  document.write(B);
    
</script>

Output:

5:35:32 AM

Errors and Exceptions:

  • Program 1: The date of the month should lie in between 1 to 31 because none of the months have the date greater than 31 that is why it returns Invalid Date because the date for the month does not exist. Hence, Year will not have existed when the date of the month is given as 36 i.e, greater than 31.
    <script>
      
      // Here a date has been assigned
      // while creating Date object
      var dateobj = new Date('July 36, 2018 05:35:32');
       
      // time from above date object is
      // being extracted using toLocaleTimeString()
      var B = dateobj.toLocaleTimeString();
       
      // Printing time
      document.write(B);  
        
    </script>

    Output:

    Invalid Date
    
  • Program 2: If nothing as parameter is given to the Date() constructor the current date is passed in Date object and hence toLocaleTimeString() will return current time.
    <script>
      
      // Here a date has been assigned
      // while creating Date object
      var dateobj = new Date();
       
      // time from above date object is
      // being extracted using toLocaleTimeString()
      var B = dateobj.toLocaleTimeString();
       
      // Printing time
      document.write(B);     
        
    </script>

    Output:
    The time returned in this program is Current time

    4:09:16 AM
    


This article is attributed to GeeksforGeeks.org

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