Java tutorial
import java.time.LocalDate; import java.time.LocalTime; import java.time.Month; import java.time.temporal.ChronoUnit; public class Main { public static void main(String[] args) { LocalDate ld1 = LocalDate.of(2014, Month.JANUARY, 7); LocalDate ld2 = LocalDate.of(2014, Month.MAY, 21); long days = ChronoUnit.DAYS.between(ld1, ld2); System.out.println(days); LocalTime lt1 = LocalTime.of(6, 0); LocalTime lt2 = LocalTime.of(9, 30); long hours = ChronoUnit.HOURS.between(lt1, lt2); System.out.println(hours); long minutes = ChronoUnit.MINUTES.between(lt1, lt2); System.out.println(minutes); } }