tankala

var sleepFunction = function(milliSecondsToSleep, timerLabel) {
    console.time(timerLabel);
    setTimeout(function() {
        console.timeEnd(timerLabel);
    }, milliSecondsToSleep);
}

console.time("Program");
sleepFunction(1000, "FunctionCall1");
sleepFunction(1000, "FunctionCall2");

tankala

var sleepFunction = function(milliSecondsToSleep) {
    let startTime = new Date().getTime();
    setTimeout(function() {
        let endTime = new Date().getTime();
        console.log("My job done in " + (endTime - startTime) + " ms");
    }, milliSecondsToSleep);
}

let startTime = new Date().getTime();
sleepFunction(1000);

tankala

var sleepFunction = function(milliSecondsToSleep) {
    let startTime = new Date().getTime();
    setTimeout(function() {
        console.log("Dummy CallBack");
    }, milliSecondsToSleep);
    let endTime = new Date().getTime();
    console.log("My job done in " + (endTime - startTime) + " ms");
}

let startTime = new Date().getTime();

tankala

public class ExecutionTimeMeasurementExample {
    public static void main(String[] args) throws InterruptedException {
        long startTime = System.currentTimeMillis();
        sleepFunction(1000);
        sleepFunction(1000);
        long endTime = System.currentTimeMillis();
        System.out.println("Program took " + (endTime - startTime) + " ms to complete");
    }

    private static void sleepFunction(int milliSecondsToSleep) throws InterruptedException {