JavaScript Date now() Method

The Date.now() method in JavaScript returns the current timestamp in milliseconds since the Unix epoch (January 1, 1970, 00:00:00 UTC). Date.now() is a static method of the Date object.

Date now() Method Syntax

let A = Date.now();

Date now() Method Parameters

This method does not accept any parameter.

Date now() Method Return Values

It returns the number of milliseconds elapsed since January 1, 1970, 00:00:00 UTC.

Date now() Method Example

The below example illustrates the Date now() method.

Javascript

// Use of method Date.now()
let A = Date.now();
 
// Printing the number of millisecond elapsed

console.log("The time elapsed in millisecond is: " + A);

Output

The time elapsed in millisecond is: 1702447051020

Explanation

The code snippet utilizes `Date.now()` to retrieve the current timestamp in milliseconds since the Unix epoch. It stores this value in variable `A` and prints it, indicating the elapsed milliseconds since the epoch.

Date now() Method Example:

This example illustrates getting the current date using the Date.now() method.

Javascript

// Use of Date.now() method
let d = Date(Date.now());
 
// Converting the number of millisecond
// in date string
a = d.toString()
 
// Printing the current date

console.log("The current date is: " + a)

Output

The current date is: Wed Dec 13 2023 05:57:31 GMT+0000 (Coordinated Universal Time)

Explanation

The code snippet generates a new `Date` object using the current timestamp from `Date.now()`. It then converts this date object to a string format using `.toString()` and logs it, displaying the current date and time.

Date now() Method UseCases

1. JavaScript Get Date Methods

JavaScript `getDate()` method retrieves the day of the month (1-31) from a Date object. It doesn’t require any parameters and returns the numeric value representing the day of the month.