Node.js os.uptime() Method

The os.uptime() method is an inbuilt application programming interface of the os module which is used to get system uptime in seconds. 

Syntax:

os.uptime()

Parameters: This method does not accept any parameters. 

Return Value: This method returns an integer value that specifies the number of seconds the system is running i.e. system uptime.

Example 1:  The below example illustrates the use of os.uptime() method in Node.js: 

Output: 

4507 Seconds

Example 2:  The below example illustrates the use of os.uptime() method in Node.js: 

Output:

Up time: 1 Hour(s) 18 minute(s) and 8 second(s)

Note: The above program will compile and run by using the node index.js command. 

Reference: https://nodejs.org/api/os.html#os_os_uptime