如何将毫秒转换为“hh:mm:ss”格式?

I'm confused. After stumbling upon this thread, I tried to figure out how to format a countdown timer that had the format hh:mm:ss.

我困惑。在碰到这条线后，我试着弄清楚如何设置一个有格式hh:mm:ss的倒计时器。

Here's my attempt -

——这是我的尝试

//hh:mm:ss
String.format("%02d:%02d:%02d", 
    TimeUnit.MILLISECONDS.toHours(millis),
    TimeUnit.MILLISECONDS.toMinutes(millis) - 
    TimeUnit.MINUTES.toMinutes(TimeUnit.MILLISECONDS.toHours(millis)),
    TimeUnit.MILLISECONDS.toSeconds(millis) - 
    TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millis)));

So, when I try a value like 3600000ms, I get 01:59:00, which is wrong since it should be 01:00:00. Obviously there's something wrong with my logic, but at the moment, I cannot see what it is!

所以，当我尝试一个值为3600000ms时，我得到了01:59:00，这是错误的，因为它应该是01:00。很明显，我的逻辑有问题，但现在，我看不出它是什么!

Can anyone help?

谁能帮忙吗?

Edit -

编辑-

Fixed it. Here's the right way to format milliseconds to hh:mm:ss format -

固定它。以下是格式化毫秒为hh:mm:ss格式的正确方法。

//hh:mm:ss
String.format("%02d:%02d:%02d", 
    TimeUnit.MILLISECONDS.toHours(millis),
    TimeUnit.MILLISECONDS.toMinutes(millis) - 
    TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(millis)),
    TimeUnit.MILLISECONDS.toSeconds(millis) - 
    TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millis))));

The problem was this TimeUnit.MINUTES.toMinutes(TimeUnit.MILLISECONDS.toHours(millis)). It should have been this TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(millis)) instead.

问题是这个时间。分钟。tominutes(时间单位。毫秒。tohours (millis))。应该是这个时间单位。时间单位。

14 个解决方案

#1

256

You were really close:

你真的关闭:

String.format("%02d:%02d:%02d", 
TimeUnit.MILLISECONDS.toHours(millis),
TimeUnit.MILLISECONDS.toMinutes(millis) -  
TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(millis)), // The change is in this line
TimeUnit.MILLISECONDS.toSeconds(millis) - 
TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millis)));

You were converting hours to millisseconds using minutes instead of hours.

你用几分钟而不是几个小时把时间转换成毫秒。

BTW, I like your use of the TimeUnit API :)

顺便说一下，我喜欢你使用TimeUnit API:)

Here's some test code:

这里有一些测试代码:

public static void main(String[] args) throws ParseException {
    long millis = 3600000;
    String hms = String.format("%02d:%02d:%02d", TimeUnit.MILLISECONDS.toHours(millis),
            TimeUnit.MILLISECONDS.toMinutes(millis) - TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(millis)),
            TimeUnit.MILLISECONDS.toSeconds(millis) - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millis)));
    System.out.println(hms);
}

Output:

输出:

01:00:00

I realised that my code above can be greatly simplified by using a modulus division instead of subtraction:

我意识到我的代码可以通过使用模组而不是减法得到极大的简化:

String hms = String.format("%02d:%02d:%02d", TimeUnit.MILLISECONDS.toHours(millis),
    TimeUnit.MILLISECONDS.toMinutes(millis) % TimeUnit.HOURS.toMinutes(1),
    TimeUnit.MILLISECONDS.toSeconds(millis) % TimeUnit.MINUTES.toSeconds(1));

Still using the TimeUnit API for all magic values, and gives exactly the same output.

仍然使用TimeUnit API实现所有的魔法值，并给出完全相同的输出。

#2

The generic method for this is fairly simple:

这种方法的一般方法相当简单:

public static String convertSecondsToHMmSs(long seconds) {
    long s = seconds % 60;
    long m = (seconds / 60) % 60;
    long h = (seconds / (60 * 60)) % 24;
    return String.format("%d:%02d:%02d", h,m,s);
}

#3

If you are using apache commons:

如果您使用的是apache commons:

DurationFormatUtils.formatDuration(timeInMS, "HH:mm:ss,SSS");

#4

// New date object from millis
Date date = new Date(millis);
// formattter 
SimpleDateFormat formatter= new SimpleDateFormat("HH:mm:ss");
// Pass date object
String formatted = formatter.format(date );

#5

I used this:

我用这个:

String.format("%1$tH:%1$tM:%1$tS", millis);

Source: http://docs.oracle.com/javase/1.5.0/docs/api/java/util/Formatter.html

来源:http://docs.oracle.com/javase/1.5.0/docs/api/java/util/Formatter.html

#6

DateFormat df = new SimpleDateFormat("HH:mm:ss");
String formatted = df.format(aDateObject);

#7

Test results for the 4 implementations

4个实现的测试结果。

Having to do a lot of formatting for huge data, needed the best performance, so here are the (surprising) results:

需要对大量数据进行大量格式化，需要最佳的性能，所以这里有(令人惊讶的)结果:

for (int i = 0; i < 1000000; i++) { FUNCTION_CALL }

for (int i = 0;我< 1000000;我+ +){ FUNCTION_CALL }

Durations:

持续时间:

combinationFormatter: 196 millis
combinationFormatter:196,米尔斯
formatDuration: 272 millis
formatDuration:272,米尔斯
apacheFormat: 754 millis
apacheFormat:754,米尔斯

formatTimeUnit: 2216 millis

formatTimeUnit:2216,米尔斯

public static String apacheFormat(long millis) throws ParseException {
    return DurationFormatUtils.formatDuration(millis, "HH:mm:ss");
}

public static String formatTimeUnit(long millis) throws ParseException {
String formatted = String.format(
        "%02d:%02d:%02d",
        TimeUnit.MILLISECONDS.toHours(millis),
        TimeUnit.MILLISECONDS.toMinutes(millis)
                - TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(millis)),
        TimeUnit.MILLISECONDS.toSeconds(millis)
                - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millis)));
    return formatted;
}

public static String formatDuration(final long millis) {
    long seconds = (millis / 1000) % 60;
    long minutes = (millis / (1000 * 60)) % 60;
    long hours = millis / (1000 * 60 * 60);

    StringBuilder b = new StringBuilder();
    b.append(hours == 0 ? "00" : hours < 10 ? String.valueOf("0" + hours) : 
    String.valueOf(hours));
    b.append(":");
    b.append(minutes == 0 ? "00" : minutes < 10 ? String.valueOf("0" + minutes) :     
    String.valueOf(minutes));
    b.append(":");
    b.append(seconds == 0 ? "00" : seconds < 10 ? String.valueOf("0" + seconds) : 
    String.valueOf(seconds));
    return b.toString();
}

public static String combinationFormatter(final long millis) {
    long seconds = TimeUnit.MILLISECONDS.toSeconds(millis)
            - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millis));
    long minutes = TimeUnit.MILLISECONDS.toMinutes(millis)
            - TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(millis));
    long hours = TimeUnit.MILLISECONDS.toHours(millis);

    StringBuilder b = new StringBuilder();
    b.append(hours == 0 ? "00" : hours < 10 ? String.valueOf("0" + hours) : 
    String.valueOf(hours));
    b.append(":");
    b.append(minutes == 0 ? "00" : minutes < 10 ? String.valueOf("0" + minutes) : 
    String.valueOf(minutes));
        b.append(":");
    b.append(seconds == 0 ? "00" : seconds < 10 ? String.valueOf("0" + seconds) : 
    String.valueOf(seconds));
    return b.toString(); 
 }

#8

The code below does the conversion in both way

下面的代码以两种方式进行转换。

23:59:58:999 to 86398999

23:59:58:999到86398999

and than

和比

86398999 to 23:59:58:999

86398999,23:59:58:999

import java.util.concurrent.TimeUnit;

public class TimeUtility {

    public static void main(String[] args) {

        long currentDateTime = System.currentTimeMillis();

        String strTest = "23:59:58:999";
        System.out.println(strTest);

        long l = strToMilli(strTest);
        System.out.println(l);
        l += 1;
        String str = milliToString(l);
        System.out.println(str);
    }

    /**
     * convert a time string into the equivalent long milliseconds
     *
     * @param strTime string fomratted as HH:MM:SS:MSMS i.e. "23:59:59:999"
     * @return long integer like 86399999
     */
    public static long strToMilli(String strTime) {
        long retVal = 0;
        String hour = strTime.substring(0, 2);
        String min = strTime.substring(3, 5);
        String sec = strTime.substring(6, 8);
        String milli = strTime.substring(9, 12);
        int h = Integer.parseInt(hour);
        int m = Integer.parseInt(min);
        int s = Integer.parseInt(sec);
        int ms = Integer.parseInt(milli);

        String strDebug = String.format("%02d:%02d:%02d:%03d", h, m, s, ms);
        //System.out.println(strDebug);
        long lH = h * 60 * 60 * 1000;
        long lM = m * 60 * 1000;
        long lS = s * 1000;

        retVal = lH + lM + lS + ms;
        return retVal;
    }

    /**
     * convert time in milliseconds to the corresponding string, in case of day
     * rollover start from scratch 23:59:59:999 + 1 = 00:00:00:000
     *
     * @param millis the number of milliseconds corresponding to tim i.e.
     *               34137999 that can be obtained as follows;
     *               <p>
     *               long lH = h * 60 * 60 * 1000; //hour to milli
     *               <p>
     *               long lM = m * 60 * 1000; // minute to milli
     *               <p>
     *               long lS = s * 1000; //seconds to milli
     *               <p>
     *               millis = lH + lM + lS + ms;
     * @return a string formatted as HH:MM:SS:MSMS i.e. "23:59:59:999"
     */
    private static String milliToString(long millis) {

        long hrs = TimeUnit.MILLISECONDS.toHours(millis) % 24;
        long min = TimeUnit.MILLISECONDS.toMinutes(millis) % 60;
        long sec = TimeUnit.MILLISECONDS.toSeconds(millis) % 60;
        //millis = millis - (hrs * 60 * 60 * 1000); //alternative way
        //millis = millis - (min * 60 * 1000);
        //millis = millis - (sec * 1000);
        //long mls = millis ;
        long mls = millis % 1000;
        String toRet = String.format("%02d:%02d:%02d:%03d", hrs, min, sec, mls);
        //System.out.println(toRet);
        return toRet;
    }
}

#9

Going by Bohemian's answer we need need not use TimeUnit to find a known value. Much more optimal code would be

根据波西米亚的答案，我们需要不用时间单位来寻找已知的价值。更理想的代码是。

String hms = String.format("%02d:%02d:%02d", millisLeft/(3600*1000),
                    millisLeft/(60*1000) % 60,
                    millisLeft/1000 % 60);

Hope it helps

希望它能帮助

#10

 public String millsToDateFormat(long mills) {

    Date date = new Date(mills);
    DateFormat formatter = new SimpleDateFormat("HH:mm:ss");
    String dateFormatted = formatter.format(date);
    return dateFormatted; //note that it will give you the time in GMT+0
}

#11

I tried as shown in the first answer. It works, but minus brought me into confusion. My answer by Groovy:

我试着在第一个答案中显示出来。它起作用了，但它却让我陷入困惑。我的答案通过Groovy:

import static java.util.concurrent.TimeUnit.*

...

private static String formatElapsedTime(long millis) {

    int hrs = MILLISECONDS.toHours(millis) % 24
    int min = MILLISECONDS.toMinutes(millis) % 60
    int sec = MILLISECONDS.toSeconds(millis) % 60
    int mls = millis % 1000

    sprintf( '%02d:%02d:%02d (%03d)', [hrs, min, sec, mls])
}

#12

        String string = String.format("%02d:%02d:%02d.%03d",
            TimeUnit.MILLISECONDS.toHours(millisecend), TimeUnit.MILLISECONDS.toMinutes(millisecend) - TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(millisecend)),
            TimeUnit.MILLISECONDS.toSeconds(millisecend) - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millisecend)), millisecend - TimeUnit.SECONDS.toMillis(TimeUnit.MILLISECONDS.toSeconds(millisecend)));

Format: 00:00:00.000

格式:00:00:00.000

Example: 615605 Millisecend

例如:615605年Millisecend

00:10:15.605

#13

Well, you could try something like this, :

你可以试试这个，

public String getElapsedTimeHoursMinutesSecondsString() {       
     long elapsedTime = getElapsedTime();  
     String format = String.format("%%0%dd", 2);  
     elapsedTime = elapsedTime / 1000;  
     String seconds = String.format(format, elapsedTime % 60);  
     String minutes = String.format(format, (elapsedTime % 3600) / 60);  
     String hours = String.format(format, elapsedTime / 3600);  
     String time =  hours + ":" + minutes + ":" + seconds;  
     return time;  
 }

to convert milliseconds to a time value

将毫秒转换为时间值。

#14

The answer marked as correct has a little mistake,

正确的答案有一点错误，

String myTime = String.format("%02d:%02d:%02d",
            TimeUnit.MILLISECONDS.toHours(millis),
            TimeUnit.MILLISECONDS.toMinutes(millis) -
                    TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(millis)), // The change is in this line
            TimeUnit.MILLISECONDS.toSeconds(millis) -
                    TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millis)));

for example this is an example of the value that i get:

举个例子，这是我得到的值的一个例子:

417474:44:19

This is the solution to get the right format is:

这是得到正确格式的解决方案:

String myTime =  String.format("%02d:%02d:%02d",
                //Hours
                TimeUnit.MILLISECONDS.toHours(millis) -
                        TimeUnit.DAYS.toHours(TimeUnit.MILLISECONDS.toDays(millis)),
                //Minutes
                TimeUnit.MILLISECONDS.toMinutes(millis) -
                        TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(millis)),
                //Seconds
                TimeUnit.MILLISECONDS.toSeconds(millis) -
                        TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millis)));

getting as a result a correct format:

得到正确的格式:

18:44:19

other option to get the format hh:mm:ss is just :

其他选择的格式hh:mm:ss只是:

   Date myDate = new Date(timeinMillis);
   SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss");
   String myTime = formatter.format(myDate);

#1

256