CODEWITHSUNDEEP
javatime
Jariel
Jariel

Reputation: 21

Milliseconds to Hours(more than 24)

I have a system that sum up all the hours(converted to milliseconds), if that hour is more than 24 hours(eg, 26 hours), it will back to 02:00:00 instead of 26:00:00.

totH = parser.parse(totalH);
totHTotal += totH.getTime(); // assume totHTotal gets 93600000.
totalHours = parser.format(new Date(totHTotal));
System.out.println(totalHours); // this will output 02:00:00 but I want this to output 26:00:00.

Can somebody help me, thank you.

Upvotes: 0

Views: 1700

Answers (1)

Guillaume Mercier
Guillaume Mercier

Reputation: 401

You could use a Duration or do the arithmetic.

1 hour: 3 600 000ms
1 minute: 60 000ms
1 second: 1 000ms

You can run it here: https://repl.it/GLLH/9

import java.time.Duration;
class Main {
  public static void main(String[] args) {
    System.out.println("Using math");
    long millsMath = 93631000;

    long hoursMath = millsMath / 3600000;
    long minutesMath = (millsMath % 3600000) / 60000;
    long secondsMath = (millsMath % 60000) / 1000;

    String outMath = String.format("%02d:%02d:%02d",hoursMath, minutesMath, secondsMath);
    System.out.println(outMath);



    System.out.println("\nUsing Duration");
    Duration dur = Duration.ofMillis(93631000);

    long hoursDur   = dur.toHours();
    long minutesDur = dur.minusHours(hoursDur).toMinutes();
    long secondsDur = dur.minusHours(hoursDur).minusMinutes(minutesDur).getSeconds();

    String outDur = String.format("%02d:%02d:%02d", hoursDur, minutesDur, secondsDur);

    System.out.println(outDur);
  }
}

output:

Using math
26:00:31

Using Duration
26:00:31

Upvotes: 1

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