I have looked through previous questions, but none had the answer I was looking for. How do I convert milliseconds from a StopWatch method to Minutes and Seconds? I have:

 watch.start();

to start the stopwatch and

 watch.stop();

to stop the watch. I later have

 watch.getTime();

which returns Milliseconds. I want it to return in Seconds and Minutes. How do I go about doing so? I'm looking for a way to do it without multiplying/dividing by 1000 but rather a method that will make the whole computation more readable and less error-prone.

19 Answers

I would suggest using TimeUnit. You can use it like this:

long minutes = TimeUnit.MILLISECONDS.toMinutes(millis);
long seconds = TimeUnit.MILLISECONDS.toSeconds(millis);

After converting millis to seconds (by dividing by 1000), you can use / 60 to get the minutes value, and % 60 (remainder) to get the "seconds in minute" value.

long millis = .....; // obtained from StopWatch
long minutes = (millis / 1000) / 60;
int seconds = (int)((millis / 1000) % 60);

tl;dr

Duration d = Duration.ofMillis( … ) ;
int minutes = d.toMinutesPart() ;
int seconds = d.toSecondsPart() ;

Java 9 and later

In Java 9 and later, create a Duration and call the to…Part methods. In this case: toMinutesPart and toSecondsPart.

Capture the start & stop of your stopwatch.

Instant start = Instant.now();
…
Instant stop = Instant.now();

Represent elapsed time in a Duration object.

Duration d = Duration.between( start , stop );

Interrogate for each part, the minutes and the seconds.

int minutes = d.toMinutesPart();
int seconds = d.toSecondsPart();

You might also want to see if your stopwatch ran expectedly long.

Boolean ranTooLong = ( d.toDaysPart() > 0 ) || ( d.toHoursPart() > 0 ) ;

Java 8

In Java 8, the Duration class lacks to…Part methods. You will need to do math as shown in the other Answers.

long entireDurationAsSeconds = d.getSeconds();

Or let Duration do the math.

long minutesPart = d.toMinutes();
long secondsPart = d.minusMinutes( minutesPart ).getSeconds() ;

See live code in IdeOne.com.

Interval: 2016-12-18T08:39:34.099Z/2016-12-18T08:41:49.099Z

d.toString(): PT2M15S

d.getSeconds(): 135

Elapsed: 2M 15S

Resolution

FYI, the resolution of now methods changed between Java 8 and Java 9. See this Question.

Java 9 captures the moment with a resolution as fine as nanoseconds. Resolution depends on capability of your computer’s hardware. I see microseconds (six digits of decimal fraction) on MacBook Pro Retina with macOS Sierra.
Java 8 captures the moment only up to milliseconds. The implementation of Clock is limited to a resolution of milliseconds. So you can store values in nanoseconds but only capture them in milliseconds.

About java.time

The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date, Calendar, & SimpleDateFormat.

To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.

The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.

You may exchange java.time objects directly with your database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.* classes.

Where to obtain the java.time classes?

Java SE 8, Java SE 9, Java SE 10, Java SE 11, and later - Part of the standard Java API with a bundled implementation.
- Java 9 adds some minor features and fixes.
Java SE 6 and Java SE 7
- Most of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
Android
- Later versions of Android bundle implementations of the java.time classes.
- For earlier Android (<26), the ThreeTenABP project adapts ThreeTen-Backport (mentioned above). See How to use ThreeTenABP….

I was creating a mp3 player app for android, so I did it like this to get current time and duration

 private String millisecondsToTime(long milliseconds) { long minutes = (milliseconds / 1000) / 60; long seconds = (milliseconds / 1000) % 60; String secondsStr = Long.toString(seconds); String secs; if (secondsStr.length() >= 2) { secs = secondsStr.substring(0, 2); } else { secs = "0" + secondsStr; } return minutes + ":" + secs;
}

This is just basic math. 1000 milliseconds=1 second and 60000 milliseconds = 1 minute; So just do,

int seconds=(millis/1000)%60;
long minutes=((millis-seconds)/1000)/60;

 public static String getIntervalTime(long longInterval) { long intMillis = longInterval; long dd = TimeUnit.MILLISECONDS.toDays(intMillis); long daysMillis = TimeUnit.DAYS.toMillis(dd); intMillis -= daysMillis; long hh = TimeUnit.MILLISECONDS.toHours(intMillis); long hoursMillis = TimeUnit.HOURS.toMillis(hh); intMillis -= hoursMillis; long mm = TimeUnit.MILLISECONDS.toMinutes(intMillis); long minutesMillis = TimeUnit.MINUTES.toMillis(mm); intMillis -= minutesMillis; long ss = TimeUnit.MILLISECONDS.toSeconds(intMillis); long secondsMillis = TimeUnit.SECONDS.toMillis(ss); intMillis -= secondsMillis; String stringInterval = "%02d days - %02d:%02d:%02d.%03d"; return String.format(stringInterval , dd, hh, mm, ss, intMillis); }

Shorter Form!

 public static String getIntervalTime(long longInterval) { long intMillis = longInterval; long dd = TimeUnit.MILLISECONDS.toDays(intMillis); intMillis -= TimeUnit.DAYS.toMillis(dd); long hh = TimeUnit.MILLISECONDS.toHours(intMillis); intMillis -= TimeUnit.HOURS.toMillis(hh); long mm = TimeUnit.MILLISECONDS.toMinutes(intMillis); intMillis -= TimeUnit.MINUTES.toMillis(mm); long ss = TimeUnit.MILLISECONDS.toSeconds(intMillis); intMillis -= TimeUnit.SECONDS.toMillis(ss); String stringInterval = "%02d days - %02d:%02d:%02d.%03d"; return String.format(stringInterval , dd, hh, mm, ss, intMillis); }

Testing

long delay = 1000*60*20 + 1000*5 + 10;
LOGGER.log(Level.INFO, "Delay Expected {0}", getIntervalTime(delay));

Output

INFO: Delay Expected 00 days - 00:20:05.010

To convert time in millis directly to minutes: second format you can use this

String durationText = DateUtils.formatElapsedTime(timeInMillis / 1000));

This will return a string with time in proper formatting. It worked for me.

X milliseconds = X / 1000 seconds = (X / 1000) / 60 minutes

If you have 100,000 milliseconds, divide this value by 1,000 and you're left with 100 seconds. Now 100 / 60 = 1.666~ minutes, but fractional minutes have no value, so: do 100 % 60 = 40 seconds to find the remainder, then integer division 100 / 60 = 1 minute, with 40 seconds remainder. Answer: 1 minute, 40 seconds.

Here is the full program

import java.util.concurrent.TimeUnit;
public class Milliseconds {
public static void main(String[] args) { long milliseconds = 1000000; // long minutes = (milliseconds / 1000) / 60; long minutes = TimeUnit.MILLISECONDS.toMinutes(milliseconds); // long seconds = (milliseconds / 1000); long seconds = TimeUnit.MILLISECONDS.toSeconds(milliseconds); System.out.format("%d Milliseconds = %d minutes\n", milliseconds, minutes ); System.out.println("Or"); System.out.format("%d Milliseconds = %d seconds", milliseconds, seconds );
}
}

I found this program here "Link" there it is explained in detail.

To get actual hour, minute and seconds as appear on watch try this code

val sec = (milliSec/1000) % 60
val min = ((milliSec/1000) / 60) % 60
val hour = ((milliSec/1000) / 60) / 60

You can try proceeding this way:

Pass ms value from

Long ms = watch.getTime();

getDisplayValue(ms)

Kotlin implementation:

fun getDisplayValue(ms: Long): String { val duration = Duration.ofMillis(ms) val minutes = duration.toMinutes() val seconds = duration.minusMinutes(minutes).seconds return "${minutes}min ${seconds}sec"
}

Java implementation:

public String getDisplayValue(Long ms) { Duration duration = Duration.ofMillis(ms); Long minutes = duration.toMinutes(); Long seconds = duration.minusMinutes(minutes).getSeconds(); return minutes + "min " + seconds "sec"
}

I need to convert millisecond to minute and second for timer so I used this code.

private String getTime(long millisecond) { long min = TimeUnit.MILLISECONDS.toMinutes(millisecond); long sec = TimeUnit.MILLISECONDS.toSeconds(millisecond) - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millisecond)); String time = min + ":" + sec; return time;
}

for revers, each minute equals 60,000 millisecond and each second equals 1000 millisecond. So :

 long millisecond = minutes * 60000; long millisecond = seconds * 1000;

 long millisecond = TimeUnit.SECONDS.toMillis(seconds);

I don't think Java 1.5 support concurrent TimeUnit. Otherwise, I would suggest for TimeUnit. Below is based on pure math approach.

stopWatch.stop();
long milliseconds = stopWatch.getTime();
int seconds = (int) ((milliseconds / 1000) % 60);
int minutes = (int) ((milliseconds / 1000) / 60);

You can easily convert miliseconds into seconds, minutes and hours.

 val millis = **milliSecondsYouWantToConvert** val seconds = (millis / 1000) % 60 val minutes = ((millis / 1000) / 60) % 60 val hours = ((millis / 1000) / 60) / 60 println("--------------------------------------------------------------------") println(String.format("%02dh : %02dm : %02ds remaining", hours, minutes, seconds)) println("--------------------------------------------------------------------")
**RESULT :**
-------------------------------------------------------------------- 01h : 23m : 37s remaining
--------------------------------------------------------------------

Below code does the work for converting ms to min:secs with [m:ss] format

int seconds;
int minutes;
String Sec;
long Mills = ...; // Milliseconds goes here
minutes = (int)(Mills / 1000) / 60;
seconds = (int)((Mills / 1000) % 60);
Sec = seconds+"";
TextView.setText(minutes+":"+Sec);//Display duration [3:40]

package com.v3mobi.userpersistdatetime;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.Toast;
import java.util.Date;
import java.util.concurrent.TimeUnit;
public class UserActivity extends AppCompatActivity { Date startDate; Date endDate; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_user); startDate = java.util.Calendar.getInstance().getTime(); //set your start time } @Override protected void onStop() { super.onStop(); endDate = java.util.Calendar.getInstance().getTime(); // set your end time chekUserPersistence(); } private void chekUserPersistence() { long duration = endDate.getTime() - startDate.getTime();
// long duration = 301000; long diffInMinutes = TimeUnit.MILLISECONDS.toMinutes(duration); // minutes ok long secs = (duration/1000) % 60; // minutes ok Toast.makeText(UserActivity.this, "Diff " + diffInMinutes + " : "+ secs , Toast.LENGTH_SHORT).show(); System.out.println("Diff " + diffInMinutes +" : "+ secs ); Log.e("keshav","diffInMinutes -->" +diffInMinutes); Log.e("keshav","secs -->" +secs); finish(); }
}

Apache Commons Lang class DurationFormatUtils. This class has some standard formats out of the box but also supports custom formats.

String result = DurationFormatUtils.formatDuration(millis, "mm:ss.SSS' sec.'");

This is related to a previous post, but in my opinion the solution proposed wasn't quite right.
In order to realize a correct conversion, this is what should be implemnted:

long time_millis = 1926546
int minutes = time_millis / 1000 / 60
int seconds = ((int)(time_millis / 1000) % 60) #important that this division is cast to an int
println "Build time: $minutes minutes $seconds seconds"

Here is a simple solution. Example calls that could be used in any method:

StopWatch.start();
StopWatch.stop();

StopWatch.displayDiff(); displays difference in minutes and seconds between start and stop. (elapsed time)

import java.time.Duration;
import java.time.Instant;
public class StopWatch { private static Instant start; private static Instant stop; private void StopWatch() { // not called } public static void start() { start = Instant.now(); } public static void stop() { stop = Instant.now(); } public static void displayDiff() { Duration totalTime = Duration.between(start, stop); System.out.println(totalTime.toMinutes() + " Minutes " + totalTime.toMillis() / 1000 + " Seconds"); }
}

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Converting Milliseconds to Minutes and Seconds?

19 Answers

tl;dr

Java 9 and later

Java 8

Resolution

About java.time

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