Convert java util Date to String

Question

I want to convert a java util Date object to a String in Java   The format is 2010-05-30 22 15 52

User · Answer

The easiest way to use it is as following:

currentISODate = new Date().parse("yyyy-MM-dd'T'HH:mm:ss", "2013-04-14T16:11:48.000");

where "yyyy-MM-dd'T'HH:mm:ss" is the format of the reading date

output: Sun Apr 14 16:11:48 EEST 2013

Notes: HH vs hh - HH refers to 24h time format - hh refers to 12h time format

User · Answer

Convert a Date to a String using DateFormat format method   String pattern    MM dd yyyy HH mm ss       Create an instance of SimpleDateFormat used for formatting     the string representation of date according to the chosen pattern DateFormat df   new SimpleDateFormat pattern       Get the today date using Calendar object  Date today   Calendar getInstance   getTime               Using DateFormat format method we can create a string     representation of a date with the defined format  String todayAsString   df format today       Print the result  System out println  Today is      todayAsString     From http   www kodejava org examples 86 html

User · Answer

Try this   import java text ParseException  import java text SimpleDateFormat   public class Date       public static void main String   args                 SimpleDateFormat sdf   new SimpleDateFormat  yyyy-MM-dd HH mm ss            String strDate    2013-05-14 17 07 21           try                      java util Date dt   sdf parse strDate                       System out println sdf format dt                      catch  ParseException pe                        pe printStackTrace                        Output   2013-05-14 17 07 21   For more on date and time formatting in java refer links below  Oracle Help Centre  Date time example in java

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If you only need the time from the date  you can just use the feature of String   Date test   new Date    String dayString   test toString    String timeString   dayString substring  11   19      This will automatically cut the time part of the String and save it inside the timeString

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public static String formateDate String dateString        Date date      String formattedDate           try           date   new SimpleDateFormat  yyyy-MM-dd T HH mm ss  Locale getDefault    parse dateString           formattedDate   new SimpleDateFormat  dd MM yyyy  Locale getDefault    format date         catch  ParseException e               TODO Auto-generated catch block         e printStackTrace               return formattedDate

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One Line option   This option gets a easy one-line to write the actual date      Please  note that this is using Calendar class and SimpleDateFormat  and then it s not   logical to use it under Java8    yourstringdate    new SimpleDateFormat  yyyy-MM-dd HH mm ss   format Calendar getInstance   getTime

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Altenative one-liners in plain-old java   String format  The date   tY- tm- td   date  date  date    String format  The date   1 tY- 1 tm- 1 td   date    String format  Time with tz   tY-  lt tm-  lt td   lt tH   lt tM   lt tS   lt tL  lt tz   date    String format  The date and time in ISO format   tF   lt tT   date     This uses Formatter and relative indexing instead of SimpleDateFormat which is not thread-safe  btw   Slightly more repetitive but needs just one statement   This may be handy in some cases

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Date date   new Date    String strDate   String format   tY-  lt tm-  lt td   lt tH   lt tM   lt tS   date

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In single shot      To get the Date  String date   new SimpleDateFormat  yyyy-MM-dd     Locale getDefault    format new Date       To get the Time  String time   new SimpleDateFormat  hh mm   Locale getDefault    format new Date       To get the date and time  String dateTime   new SimpleDateFormat  yyyy-MM-dd hh mm ss   Locale getDefaut    format new Date       Happy coding

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Let s try this  public static void main String args           Calendar cal   GregorianCalendar getInstance        Date today   cal getTime        DateFormat df7   new SimpleDateFormat  yyyy-MM-dd HH mm ss         try                      String str7   df7 format today           System out println  String in yyyy-MM-dd format is      str7                   catch  Exception ex          ex printStackTrace              Or a utility function  public String convertDateToString Date date  String format        String dateStr   null      DateFormat df   new SimpleDateFormat format        try           dateStr   df format date         catch  Exception ex            ex printStackTrace              return dateStr      From Convert Date to String in Java

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It looks like you are looking for SimpleDateFormat   Format  yyyy-MM-dd kk mm ss

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public static void main String   args         Date d   new Date        SimpleDateFormat form   new SimpleDateFormat  dd-mm-yyyy hh mm ss        System out println form format d        String str   form format d      or if you want to save it in String str     System out println str      and print after that

User · Answer

Commons-lang DateFormatUtils is full of goodies  if you have commons-lang in your classpath     Formats a date time into a specific pattern  DateFormatUtils format yourDate   yyyy-MM-dd HH mm SS

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SimpleDateFormat sdf   new SimpleDateFormat  yyyy-MM-dd HH mm ss        String date    2010-05-30 22 15 52       java util Date formatedDate   sdf parse date      returns a String when it is parsed     System out println sdf format formatedDate       the use of format function returns a String

User · Answer

Format formatter   new SimpleDateFormat  yyyy-MM-dd HH mm ss    String s   formatter format date

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tl dr  myUtilDate toInstant       Convert  java util Date  to  Instant              atOffset  ZoneOffset UTC       Transform  Instant  to  OffsetDateTime              format  DateTimeFormatter ISO LOCAL DATE TIME       Generate a String             replace   T              Put a SPACE in the middle       2014-11-14 14 05 09   java time  The modern way is with the java time classes that now supplant the troublesome old legacy date-time classes   First convert your java util Date to an Instant  The Instant class represents a moment on the timeline in UTC with a resolution of nanoseconds  up to nine  9  digits of a decimal fraction    Conversions to from java time are performed by new methods added to the old classes   Instant instant   myUtilDate toInstant      Both your java util Date and java time Instant are in UTC  If you want to see the date and time as UTC  so be it  Call toString to generate a String in standard ISO 8601 format   String output   instant toString           2014-11-14T14 05 09Z   For other formats  you need to transform your Instant into the more flexible OffsetDateTime   OffsetDateTime odt   instant atOffset  ZoneOffset UTC         odt toString    2020-05-01T21 25 35 957Z   See that code run live at IdeOne com   To get a String in your desired format  specify a DateTimeFormatter  You could specify a custom format  But I would use one of the predefined formatters  ISO LOCAL DATE TIME   and replace the T in its output with a SPACE   String output   odt format  DateTimeFormatter ISO LOCAL DATE TIME                       replace   T                2014-11-14 14 05 09   By the way I do not recommend this kind of format where you purposely lose the offset-from-UTC or time zone information  Creates ambiguity as to the meaning of that string   s date-time value   Also beware of data loss  as any fractional second is being ignored  effectively truncated  in your String   s representation of the date-time value   To see that same moment through the lens of some particular region   s wall-clock time  apply a ZoneId to get a ZonedDateTime   ZoneId z   ZoneId of   America Montreal     ZonedDateTime zdt   instant atZone  z         zdt toString     2014-11-14T14 05 09-05 00 America Montreal    To generate a formatted String  do the same as above but replace odt with zdt   String output   zdt format  DateTimeFormatter ISO LOCAL DATE TIME                       replace   T                2014-11-14 14 05 09   If executing this code a very large number of times  you may want to be a bit more efficient and avoid the call to String  replace  Dropping that call also makes your code shorter  If so desired  specify your own formatting pattern in your own DateTimeFormatter object  Cache this instance as a constant or member for reuse   DateTimeFormatter f   DateTimeFormatter ofPattern   uuuu-MM-dd HH mm ss         Data-loss  Dropping any fractional second    Apply that formatter by passing the instance   String output   zdt format  f      About java time  The java time framework is built into Java 8 and later  These classes supplant the troublesome old date-time classes such as java util Date   Calendar   amp  java text SimpleDateFormat   The Joda-Time project  now in maintenance mode  advises migration to java time   To learn more  see the Oracle Tutorial  And search Stack Overflow for many examples and explanations   Much of the java time functionality is back-ported to Java 6  amp  7 in ThreeTen-Backport and further adapted to Android in ThreeTenABP  see How to use       The ThreeTen-Extra project extends java time with additional classes  This project is a proving ground for possible future additions to java time

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Why don t you use Joda  org joda time DateTime   It s basically a one-liner   Date currentDate   GregorianCalendar getInstance   getTime    String output   new DateTime  currentDate   toString  yyyy-MM-dd HH mm ss        output  2014-11-14 14 05 09

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Here are examples of using new Java 8 Time API to format legacy java util Date       DateTimeFormatter formatter   DateTimeFormatter ofPattern  yyyy-MM-dd HH mm ss SSS Z            withZone ZoneOffset UTC       String utcFormatted   formatter format date toInstant           ZonedDateTime utcDatetime   date toInstant   atZone ZoneOffset UTC       String utcFormatted2   utcDatetime format DateTimeFormatter ofPattern  yyyy-MM-dd HH mm ss SSS Z            gives the same as above      ZonedDateTime localDatetime   date toInstant   atZone ZoneId systemDefault         String localFormatted   localDatetime format DateTimeFormatter ISO ZONED DATE TIME          2011-12-03T10 15 30 01 00 Europe Paris       String nowFormatted   LocalDateTime now   toString       2007-12-03T10 15 30 123   It is nice about DateTimeFormatter that it can be efficiently cached as it is thread-safe  unlike SimpleDateFormat    List of predefined fomatters and pattern notation reference   Credits   How to parse format dates with LocalDateTime   Java 8   Java8 java util Date conversion to java time ZonedDateTime  Format Instant to String  What  39 s the difference between java 8 ZonedDateTime and OffsetDateTime

[java] Convert java.util.Date to String

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