How do I format a date with Dart

Question

I have an instance of DateTime and I would like to format that to a String  How do I do that  I want to turn the date into a string  something like  2013-04-20

User · Answer

handling yearly quarters  from string to DateTime  I didn t find proper solution so made this      List lt String gt  dateAsList    Q1 2001  split           DateTime dateTime   DateTime now        String quarter   dateAsList 0       int year   int parse dateAsList 1        switch quarter          case  quot Q1 quot   dateTime   DateTime year  1         break        case  quot Q2 quot   dateTime   DateTime year  4         break        case  quot Q3 quot   dateTime   DateTime year  7         break        case  quot Q4 quot   dateTime   DateTime year  10         break

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This give you the date like in a social network     quot today quot   quot yesterday quot   quot dayoftheweek quot  etc    void main           DateTime now   new DateTime 2018 6 26         print date now                   String date DateTime tm          DateTime today   new DateTime now          Duration oneDay   new Duration days  1         Duration twoDay   new Duration days  2         Duration oneWeek   new Duration days  7         String month        switch  tm month            case 1            month    quot january quot             break          case 2            month    quot february quot             break          case 3            month    quot march quot             break          case 4            month    quot april quot             break          case 5            month    quot may quot             break          case 6            month    quot june quot             break          case 7            month    quot july quot             break          case 8            month    quot august quot             break          case 9            month    quot september quot             break          case 10            month    quot october quot             break          case 11            month    quot november quot             break          case 12            month    quot december quot             break                     Duration difference   today difference tm              if  difference compareTo oneDay   lt  1            return  quot today quot           else if  difference compareTo twoDay   lt  1            return  quot yesterday quot           else if  difference compareTo oneWeek   lt  1            switch  tm weekday              case 1              return  quot monday quot             case 2              return  quot tuesday quot             case 3              return  quot wednesday quot             case 4              return  quot thursday quot             case 5              return  quot friday quot             case 6              return  quot saturday quot             case 7              return  quot sunday quot                     else if  tm year    today year            return    tm day   month           else           return    tm day   month   tm year

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If someone wants to convert a date in string format to some other string format first use DateTime parse  2019-09-30   then pass it to DateFormat  date pattern   format   like   dateFormate   DateFormat  dd-MM-yyyy   format DateTime parse  2019-09-30       Reference  Dart - How to change format of simple date string which is in yyyy-MM-dd to dd-MM-yyyy

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This will work too     DateTime today   new DateTime now    String dateSlug     today year toString   -  today month toString   padLeft 2  0   -  today day toString   padLeft 2  0      print dateSlug

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You can use this method as well  if you don t want to add another library   DateTime dateTime   DateTime now      String YYYY MM DD   dateTime toIso8601String   split  T   first    print YYYY MM DD     2020-11-23

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pubspec yaml   dependencies    intl    main dart   import  package intl intl dart      for date format import  package intl date symbol data local dart      for other locales  void main       var now   DateTime now      print DateFormat   format now       This will return date using the default locale   print DateFormat  yyyy-MM-dd hh mm ss   format now      print DateFormat yMMMMd   format now       print long date    print DateFormat yMd   format now       print short date    print DateFormat jms   format now       print time     initializeDateFormatting  es       This will initialize Spanish locale   print DateFormat yMMMMd  es   format now       print long date in Spanish format   print DateFormat yMd  es   format now       print short date in Spanish format   print DateFormat jms  es   format now       print time in Spanish format     Result   May 31  2020 5 41 42 PM 2020-05-31 05 41 42 May 31  2020 5 31 2020 5 41 42 PM 31 de mayo de 2020 31 5 2020 17 41 42

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There is a package date format  dependencies      date format    code  import  package date format date format dart    final formattedStr   formatDate      yourDateTime   dd       mm       yy       HH       nn        output example  29 03 19 07 00    Pay attention  minutes are nn  link to the package

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In the case you want to combine several date format into one  this is how we can do using intl  DateFormat  yMMMd   addPattern DateFormat HOUR24 MINUTE  format yourDateTime

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String dateConverter String date           Input date Format     final format   DateFormat  quot dd-MM-yyyy quot        DateTime gettingDate   format parse date       final DateFormat formatter   DateFormat  yyyy-MM-dd           Output Date Format     final String formatted   formatter format gettingDate       return date

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String formatDate String date        return date substring 0  10  split  -   reversed join   replaceAll  -                   From format  quot yyyy-mm-dd H i s quot

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import  package intl intl dart    main       var formattedDate   new DateTime Format  yyyy-MM-dd   DateTime now      print formattedDate      something like 2020-04-16     For more details can refer DateFormat Documentation

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You can use the intl package  installer  to format dates  For en US formats  it s quite simple  import  package intl intl dart    main       final DateTime now   DateTime now      final DateFormat formatter   DateFormat  yyyy-MM-dd      final String formatted   formatter format now     print formatted      something like 2013-04-20    There are many options for formatting  From the docs  ICU Name                   Skeleton --------                   -------- DAY                          d ABBR WEEKDAY                 E WEEKDAY                      EEEE ABBR STANDALONE MONTH        LLL STANDALONE MONTH             LLLL NUM MONTH                    M NUM MONTH DAY                Md NUM MONTH WEEKDAY DAY        MEd ABBR MONTH                   MMM ABBR MONTH DAY               MMMd ABBR MONTH WEEKDAY DAY       MMMEd MONTH                        MMMM MONTH DAY                    MMMMd MONTH WEEKDAY DAY            MMMMEEEEd ABBR QUARTER                 QQQ QUARTER                      QQQQ YEAR                         y YEAR NUM MONTH               yM YEAR NUM MONTH DAY           yMd YEAR NUM MONTH WEEKDAY DAY   yMEd YEAR ABBR MONTH              yMMM YEAR ABBR MONTH DAY          yMMMd YEAR ABBR MONTH WEEKDAY DAY  yMMMEd YEAR MONTH                   yMMMM YEAR MONTH DAY               yMMMMd YEAR MONTH WEEKDAY DAY       yMMMMEEEEd YEAR ABBR QUARTER            yQQQ YEAR QUARTER                 yQQQQ HOUR24                       H HOUR24 MINUTE                Hm HOUR24 MINUTE SECOND         Hms HOUR                         j HOUR MINUTE                  jm HOUR MINUTE SECOND           jms HOUR MINUTE GENERIC TZ       jmv HOUR MINUTE TZ               jmz HOUR GENERIC TZ              jv HOUR TZ                      jz MINUTE                       m MINUTE SECOND                ms SECOND                       s  For non-en US dates  you need to explicitly load in the locale  See the DateFormat docs for more info  The date symbol data local dart contains all of the formats for each country language  if you would like a more in-depth look

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You can also specify the date format like stated earlier  https   pub dev documentation intl latest intl DateFormat-class html import  package intl intl dart   String formatDate DateTime date    gt  new DateFormat  quot MMMM d quot   format date    Produces  March 4

[dart] How do I format a date with Dart?

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