JavaScript Date toISOString() Method

Below is the example of Date toISOString() method.

  • Example:
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    <script>
       // Here a date has been assigned
       // while creating Date object
       var dateobj = 
       new Date('October 15, 1996 05:35:32');
      
       // Contents of above date object is converted
       // into a string using toISOString() function.
       var B = dateobj.toISOString();
      
       // Printing the converted string.
       document.write(B);
    </script>

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  • Output:

    1996-10-15T00:05:32.000Z
    

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The date.toISOString() method is used to convert the given date object’s contents into a string in ISO format (ISO 8601) i.e, in the form of (YYYY-MM-DDTHH:mm:ss.sssZ or ±YYYYYY-MM-DDTHH:mm:ss.sssZ).The date object is created using date() constructor.


Syntax:


dateObj.toISOString()


Parameters: This method does not take any parameter. It is just used along with a Date object created using Date() constructor.


Return Values: It returns the converted string of Date() constructor contents into ISO format (ISO 8601).




Note: The DateObj is a valid Date object created using Date() conctructor.

More codes for the above method are as follows:


Program 1: Here nothing as a parameter is passed while creating date object but still toISOString() method return current day name, month name, date, year, and time.











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<script> 


   // Here nothing has been assigned 


   // while creating Date object 


   var dateobj = new Date(); 


  


   // Contents of above date object is 


   // converted into a string using toISOString() method. 


   var B = dateobj.toISOString(); 


  


   // Printing the converted string. 


   document.write(B); 


</script> 



















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Output:


2018-04-23T10:26:00.996Z


Program 2: Here we will pass a date object toISOString() method return day name, month name, date, year, and time.











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<script> 


    // Here nothing has been assigned 


    // while creating Date object 


    var dateobj =  


    new Date('October 13, 1996 05:35:32 GMT-3:00'); 


  


    // Contents of above date object is 


    // converted into a string using toISOString() method. 


    var B = dateobj.toISOString(); 


  


    // Printing the converted string. 


    document.write(B); 


</script>                     



















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Output:


1996-10-13T08:35:32.000Z


Note: Months, Dates, hours, minutes, seconds, milliseconds should all be in their respective range of 0 to 11, 1 to 31, 0 to 23, 0 to 59, 0 to 59, 0 to 999 respectively.


Supported Browsers: The browsers supported by JavaScript Date toISOString() method are listed below:


    

  • Google Chrome
    • 

  • Internet Explorer 9.0
    • 

  • Mozilla Firefox
    • 

  • Opera
    • 

  • Safari
    • 



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