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Dart & Flutter package New: calendar & durations →

Dates for every locale, in one line of Dart

Format, parse and compute dates in 55+ locales: ordinal patterns, relative and calendar times, humanized durations and DST-safe date math.

Get started ↗Browse locales
$ dart pub add flutter_date_formatter
main.dart
final date = DateTime.now();

date.format(
  pattern: 'EEEE, do MMMM yyyy',
  locale: 'en',
);
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Explore the API

Every page has live examples running the real package.

AaFormattingintl patterns plus do ordinals and [literal] text.formatordinal↗↺Relative time"5 minutes ago", "in 3 days", long or short.agoin↗▦Calendar time"Today at 3:00 PM", "Last Monday at…", aware of the week.chatfeed↗⏱Durations"2 hours 5 minutes" with correct plurals in every locale.humanize↗⇥ParsingRead strings back with the same pattern syntax.parsetryParse↗ƒDateTime helpersWeek numbers, quarters, DST-safe arithmetic.startOfdiff↗↔TimeSpan & rangesInterval set operations, iteration and clamping.mergeiterate↗文LocalesEvery locale side by side, live.gallery↗
55+

Locales

Patterns, relative, calendar and duration strings, with CLDR plural rules.

DST

Calendar-safe math

Day, week and month steps keep the wall-clock time across daylight saving.

⏲

Testable clock

Inject "now" once with DateFormatterConfig; every API follows it.

0

Setup

No initializeDateFormatting call: the intl data loads on first use.