JavaScript getUTCMilliseconds(): Get the UTC Milliseconds

The JavaScript getUTCMilliseconds() method is used to get the milliseconds (0-999) according to Universal Time Coordinated (UTC) or Greenwich Mean Time (GMT). For example:

HTML with JavaScript Code

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

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

</body>
</html>

Output

In the above example, the following JavaScript code:

const d = new Date();

creates a new "Date" object, which represents the current date and time. Then the following JavaScript statement:

let ms = d.getUTCMilliseconds();

calls the getUTCMilliseconds() method on the Date object, which returns the number of milliseconds since the last full second in the UTC timezone. And then store the result of getUTCMilliseconds() in a variable called ms.

Finally, the following, or the third JavaScript statement:

document.getElementById("xyz").innerHTML = ms;

gets the HTML element with the ID "xyz" using the getElementById() method, which then sets the innerHTML property of the HTML element to the value of ms.

JavaScript getUTCMilliseconds() syntax

The syntax of the getUTCMilliseconds() method in JavaScript is:

x.getUTCMilliseconds()

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

Please note: The getUTCMilliseconds() method returns a number from 0 to 999, which will be the milliseconds of the UTC time.

Advantages of getUTCMilliseconds() in JavaScript

In timing and synchronization applications, the getUTCMilliseconds() method's precise millisecond count can be helpful.
As a standardized international time zone, the UTC timezone can aid in ensuring consistency in date and time calculations between various regions and time zones.
Because it is included in the JavaScript language specification and is supported by all current browsers, the getUTCMilliseconds() method can be used with confidence in web development.

Disadvantages of getUTCMilliseconds() in JavaScript

The getUTCMilliseconds() method returns milliseconds in the UTC timezone, which may or may not be applicable in all applications or use cases. It may be necessary to convert the result to a different timezone or use an entirely different method.
The getUTCMilliseconds() method returns the number of milliseconds since the last full second, implying a resolution of 1 millisecond. A different method may be required for applications that require greater precision.
While getUTCMilliseconds() is useful for obtaining the current milliseconds, it is insufficient for manipulating dates or performing complex date calculations. Other JavaScript date methods should be used for these types of applications.

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