JavaTimer.java

import java.time.LocalTime;
import java.util.concurrent.TimeUnit;

public class Timer {
    public static void main(String[] args) {
        LocalTime start = LocalTime.now();
	// some event to be timed
	LocalTime end = LocalTime.now();
	long delta = TimeUnit.NANOSECONDS.toMillis(end.toNanoOfDay() - start.toNanoOfDay());
	System.out.println("Time took: " + Double.valueOf(delta)/1000 + " seconds");
    }
}