converting date time to 24 hour format

Question

The time I get from the server is like  Jul 27  2011 8 35 29 AM    I want to convert it to yyyy-MM-dd HH mm ss   I also want the converted time to be in 24 hour format  Can any one give solution to this problem  The output I want to get is like 2011-07-27 08 35 29

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H vs h is difference between 24 hour vs 12 hour format

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IN two lines   SimpleDateFormat simpleDateFormat new SimpleDateFormat  hh mm aa  Locale getDefault             FAJR   new SimpleDateFormat  HH mm  Locale getDefault    format simpleDateFormat parse  8 35 PM

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kk   Hours in 1-24 format hh  hours in 1-12 format KK  hours in 0-11 format HH  hours in 0-23 format

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This is a method that uses JODA   Input example is  07 20 2015 01 46 34 436 AM  public static String get24HourFormat String dateString           Date date   new Date            DateTime date1 new DateTime                 String date             int hour 0            int year 0          if dateString  null                try                   DateTimeFormatter formatter   DateTimeFormat forPattern  MM dd yyyy hh mm ss SSS aa                    DateTimeFormatter output   DateTimeFormat forPattern  kk                     date1 formatter parseDateTime dateString                   hour date1 getHourOfDay                    System out println output print date1                        System out println date                 catch  Exception e                       TODO Auto-generated catch block                 e printStackTrace                                    return hour

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Try this   String dateStr    Jul 27  2011 8 35 29 AM   DateFormat readFormat   new SimpleDateFormat   MMM dd  yyyy hh mm ss aa    DateFormat writeFormat   new SimpleDateFormat   yyyy-MM-dd HH mm ss    Date date   null  try       date   readFormat parse dateStr     catch  ParseException e        e printStackTrace       if  date    null        String formattedDate   writeFormat format date

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Try this   Date date new Date  12 12 11 8 22 09 PM        System out println  Time in 24Hours    new SimpleDateFormat  HH mm   format date

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With Calendar it works as follows         create first Calendar object     Calendar calendar   Calendar getInstance         calendar set Calendar HOUR OF DAY  15      3 PM        the same is     calendar set Calendar AM PM  Calendar PM      choose PM mode     calendar set Calendar HOUR  3      3 PM      System out println  calendar get Calendar HOUR        AM PM format     System out println  calendar get Calendar HOUR OF DAY        0-23 format

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I am taking an example of date given below and print two different format of dates according to your requirements    String date  01 10 2014 05 54 00 PM    SimpleDateFormat simpleDateFormat new SimpleDateFormat  dd MM yyyy hh mm ss aa  Locale getDefault      try               Log i       new SimpleDateFormat  ddMMyyyyHHmmss  Locale getDefault    format simpleDateFormat parse date                  Log i       new SimpleDateFormat  dd MM yyyy HH mm ss  Locale getDefault    format simpleDateFormat parse date                catch  ParseException e                   TODO Auto-generated catch block             e printStackTrace                If you still have any query  Please respond  Thanks

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You should take a look at Java date formatting  in particular SimpleDateFormat  There s some examples here  http   download oracle com javase tutorial i18n format simpleDateFormat html - but you can also find a lot more with a quick google

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import java text SimpleDateFormat   import java util Date   public class DateFormatExample    public static void main String args              This is how to get today s date in Java     Date today   new Date           If you print Date  you will get un formatted output     System out println  Today is       today          formatting date in Java using SimpleDateFormat     SimpleDateFormat DATE FORMAT   new SimpleDateFormat  dd-MM-yyyy        String date   DATE FORMAT format today       System out println  Today in dd-MM-yyyy format       date          Another Example of formatting Date in Java using SimpleDateFormat     DATE FORMAT   new SimpleDateFormat  dd MM yy        date   DATE FORMAT format today       System out println  Today in dd MM yy pattern       date          formatting Date with time information     DATE FORMAT   new SimpleDateFormat  dd-MM-yy HH mm SS        date   DATE FORMAT format today       System out println  Today in dd-MM-yy HH mm SS       date          SimpleDateFormat example - Date with timezone information     DATE FORMAT   new SimpleDateFormat  dd-MM-yy HH mm SS Z        date   DATE FORMAT format today       System out println  Today in dd-MM-yy HH mm SSZ       date            Output   Today is   Fri Nov 02 16 11 27 IST 2012  Today in dd-MM-yyyy format   02-11-2012  Today in dd MM yy pattern   02 11 12  Today in dd-MM-yy HH mm SS   02-11-12 16 11 316  Today in dd-MM-yy HH mm SSZ   02-11-12 16 11 316  0530

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just a tip   try to use JodaTime instead of java util Date it is much more powerfull and it has a method toString     that you can pass the format you want like toString  yyy-MM-dd HH mm ss     http   joda-time sourceforge net

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DateFormat dateFormat   new SimpleDateFormat  yyyy-MM-dd HH mm ss         Date date   new Date        Date date2   new Date  2014 08 06 15 59 48         String currentDate   dateFormat format date  toString        String anyDate   dateFormat format date2  toString         System out println currentDate       System out println anyDate

[java] converting date time to 24 hour format

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