How to convert Milliseconds to "X mins, x seconds" in Java?

Question

I want to record the time using `System.currentTimeMillis()` when a user begins something in my program. When he finishes, I will subtract the current `System.currentTimeMillis()` from the `start` variable, and I want to show them the time elapsed using a human readable format such as "XX hours, XX mins, XX seconds" or even "XX mins, XX seconds" because its not likely to take someone an hour.What's the best way to do this?

Answer 1

you have the difference in milliseconds...

divide by 1000 to get seconds.... keep the remainder of milliseconds

divide that by 60 to get minutes....keep that remainder as seconds

divide that by 60 to get hours... keep that remainder as minutes

EX. 123456789 millliseconds

123456 seconds and 789 milliseconds

123456/60 = 2057 with remainder 36

So 2057 minutes 36 seconds 789 milliseconds

2057 / 60 = 34 hours 17 minutes 36 seconds 789 milliseconds

1 day 10 hours 17 minutes 36 seconds 789 milliseconds