How to have minutes between two times?

Question

I have two times and I want to get the difference in minutes.

Ex:

I have this:

09:11:30;09:15:22;

And I want to achieve this:

3 min passed

Note that the 9:15:22 is not 9:15:30 so 4 minutes are not passed already.

Answer 1

As with any date/time question, get your data into the best representable container, in this case, that would be LocalTime

DateTimeFormatter pattern = DateTimeFormatter.ofPattern("HH:mm:ss", Locale.ENGLISH);
LocalTime from = LocalTime.parse("09:11:30", pattern);
LocalTime to = LocalTime.parse("09:15:22", pattern);

From there you can simply use the API to do the work for you, in this case, making use of Duration...

Duration duration = Duration.between(from, to);
System.out.println(duration.toMinutes());

Which prints 3 (pretty sure you can add the rest of the formatting)

For more information, you could have a look at the Date/Time tutorials

Answer 2

String time1 = "09:11:30";
String time2 = "09:15:22";

SimpleDateFormat format = new SimpleDateFormat("HH:mm:ss");
Date date1 = format.parse(time1);
Date date2 = format.parse(time2);
long difference = date2.getTime() - date1.getTime(); 
long difInMinute = (difference/1000)/60;
System.out.println(difInMinute+" min passed");

Credits: Uros K