4 Ways To Get The Current Timestamp In JavaScript

To get the current timestamp in JavaScript we can use 4 different methods as shown in below table.

Timestamp (originated from UNIX) is an integer represents of the number of seconds elapsed since January 1 1970.

The above methods returns current timestamp in milliseconds.

There are Four methods to get the current timestamp in JavaScript, as listed below

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Get the current timestamp in JavaScript by using +new Date():

+new Date() returns the current timestamp in milliseconds.

The unary operator plus(+) in +new Date() calls the valueOf() method in Date object and returns timestamp in milliseconds.

To get the timestamp in seconds use the following JavaScript code

Math.floor(+new Date() / 1000)

We can use Date.now() method in Date object to get the current timestamp in JavaScript in milliseconds.

Almost all browsers supports this method except IE8 and earlier versions.

It is better to use Date.now() to get the timestamp because of readability.

 Math.floor(Date.now() / 1000)
 // or you can use following javascript code to get timestamp in seconds
 Date.now() / 1000 | 0

The second method is little bit faster but lacks readability.

For cross browser compatbility we can use getTime() method of Date object to get the current timestamp in milliseconds

new Date().getTime()
Math.round(new Date().getTime()/1000)

Or we can use new Date().valueOf() method

new Date().valueOf()
Math.round(new Date().valueOf()/1000)