Node.js process.uptime() Method Last Updated : 11 Oct, 2021 Comments Improve Suggest changes Like Article Like Report The process.uptime() method is an inbuilt application programming interface of the process module which is used to get the number of seconds the Node.js process is running. Syntax: process.uptime(); Parameters: This method does not accept any parameter. Return Value: It returns a floating-point number specifying the number of seconds the Node.js process is running. Below examples illustrate the use of process.uptime() method in Node.js: Example 1: javascript // Node.js program to demonstrate the // process.uptime() Method // Allocating process module const process = require('process'); // Printing the number of seconds // the Node.js process is running console.log(process.uptime()); Output: 0.0842063 Example 2: javascript // Node.js program to demonstrate the // process.uptime() Method // Allocating process module const process = require('process'); // Checking whether the method // exists or not if (process.uptime) { // Printing uptime() value console.log("The number of seconds the" + " Node.js process is running: " + process.uptime() + " seconds"); var i = 1000000; while(i--); console.log("The number of seconds the" + " Node.js process is running: " + process.uptime() + " seconds"); console.log("In whole seconds: " + Math.floor(process.uptime()) + " seconds"); } Output: the number of seconds the Node.js process is running: 0.077 seconds the number of seconds the Node.js process is running: 0.087 seconds In whole seconds: 0 seconds Note: The above program will compile and run by using the node filename.js command. 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