JavaScript toISOString() | Get the Date as String based on ISO Standard

The JavaScript toISOString() method is used to get the date as a string based on the ISO (International Organization for Standardization) standard. For example:

HTML with JavaScript Code

<!DOCTYPE html>
<html>
<body>
   
   <p id="xyz"></p>

   <script>
      const d = new Date();
      let dateISO = d.toISOString();
      document.getElementById("xyz").innerHTML = dateISO;
   </script>

</body>
</html>

Output

Please note: The ISO date format is YYYY-MM-DDTHH:mm:ss.sssZ where:

YYYY represents the full year
MM represents the month in 2-digits form. 0 will be added before the month number if the month number is from 1 to 9
DD represents the day of the month in 2-digit form, which will be from 01 to 31
T stands for Time (beginning of the time)
HH represents hours, which will be from 00 to 23
mm represents minutes, which will be from 00 to 59
ss represents seconds, which will be from 00 to 60. 60 is only used to denote an added leap seconds
sss represents milliseconds, which will be from 000 to 999
Z stands for zone designator

JavaScript toISOString() Syntax

The syntax of toISOString() method in JavaScript is:

x.toISOString()

where x must be an object of the Date() constructor.

The toISOString() method returns a string representing both the date and the time based on ISO standard.

JavaScript Online Test

« Previous Tutorial Next Tutorial »