Java – Time elapsed in days, hours, minutes, seconds

Two Java examples show you how to print the elapsed time in days, hours, minutes and seconds format.

1. Standard JDK Date APIs

You need to calculate the elapsed time manually.

DateTimeUtils.java

package com.mycareerrepublic.dateUtils;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class DateTimeUtils {

 public static void main(String[] args) {

   DateTimeUtils obj = new DateTimeUtils();
   SimpleDateFormat simpleDateFormat =
                new SimpleDateFormat("dd/M/yyyy hh:mm:ss");

   try {

  Date date1 = simpleDateFormat.parse("10/10/2017 11:30:10");
  Date date2 = simpleDateFormat.parse("13/10/2017 20:35:55");

  obj.printDifference(date1, date2);

   } catch (ParseException e) {
  e.printStackTrace();
   }

 }

 //1 minute = 60 seconds
 //1 hour = 60 x 60 = 3600
 //1 day = 3600 x 24 = 86400
 public void printDifference(Date startDate, Date endDate){

  //milliseconds
  long different = endDate.getTime() - startDate.getTime();

  System.out.println("startDate : " + startDate);
  System.out.println("endDate : "+ endDate);
  System.out.println("different : " + different);

  long secondsInMilli = 1000;
  long minutesInMilli = secondsInMilli * 60;
  long hoursInMilli = minutesInMilli * 60;
  long daysInMilli = hoursInMilli * 24;

  long elapsedDays = different / daysInMilli;
  different = different % daysInMilli;

  long elapsedHours = different / hoursInMilli;
  different = different % hoursInMilli;

  long elapsedMinutes = different / minutesInMilli;
  different = different % minutesInMilli;

  long elapsedSeconds = different / secondsInMilli;

  System.out.printf(
      "%d days, %d hours, %d minutes, %d seconds%n",
      elapsedDays,
      elapsedHours, elapsedMinutes, elapsedSeconds);

 }

}

Output

startDate : Thu Oct 10 11:30:10 SGT 2017
endDate : Sun Oct 13 20:35:55 SGT 2017
different : 291945000
3 days, 9 hours, 5 minutes, 45 seconds

2. Joda Time Example

Joda-time is the prefer Java date and time library, it contains APIs to calculate the elapsed time, and get it in years, months, days, hours, minutes and seconds format.

DateTimeUtils.java

package com.mycareerrepublic.dateUtils;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

import org.joda.time.Interval;
import org.joda.time.Period;

public class DateTimeUtils {

 public static void main(String[] args) {

   DateTimeUtils obj = new DateTimeUtils();
   SimpleDateFormat simpleDateFormat =
               new SimpleDateFormat("dd/M/yyyy hh:mm:ss");

   try {

  Date date1 = simpleDateFormat.parse("10/10/2017 11:30:10");
  Date date2 = simpleDateFormat.parse("13/11/2016 20:35:55");

  obj.printDifference(date1, date2);

   } catch (ParseException e) {
  e.printStackTrace();
   }

 }

 public void printDifference(Date startDate, Date endDate){

   Interval interval =
               new Interval(startDate.getTime(), endDate.getTime());
   Period period = interval.toPeriod();

          System.out.printf(
        "%d years, %d months, %d days, %d hours, %d minutes, %d seconds%n",
        period.getYears(), period.getMonths(), period.getDays(),
        period.getHours(), period.getMinutes(), period.getSeconds());

 }
}

Output

1 years, 1 months, 3 days, 9 hours, 5 minutes, 45 seconds

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About Mariano

I'm Ethan Mariano a software engineer by profession and reader/writter by passion.I have good understanding and knowledge of AngularJS, Database, javascript, web development, digital marketing and exploring other technologies related to Software development.