Get elapsed time in hours in Java

//from w w  w  .  j a  v a2  s  .  co  m
public class Main {
  public static void main(String[] argv) throws Exception {
    long start = System.currentTimeMillis();

    Thread.sleep(2000);

    // Get elapsed time in milliseconds
    long elapsedTimeMillis = System.currentTimeMillis() - start;
    // Get elapsed time in hours
    float elapsedTimeHour = elapsedTimeMillis/(60*60*1000F);
    System.out.println(elapsedTimeHour);
  }
}