buddhist_datetime_dateformat 1.0.6

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  • new82

Buddhist Calendar DateTime and DateFormatter for Dart and Flutter #

If this helps you out of problem, please give it a like in pub.dev or a star on github. 😄



These are extension that you can get DateTime and DateFormat in Buddhist calendar's format.

I implemented these extensions for use in Thai language project. But you can contribute to add more support for other countries who also use Buddhist calendar in the apps.

Getting Started #

1. Setup #

Install package via pubspec.yaml

  intl: ^0.16.1  
  buddhist_datetime_dateformat: ^1.0.1

2. Initialization #

Then go to your main.dart. Let's import and write some Initialization code.

// need this for `Intl.defaultLocale = "th";`
import 'package:intl/intl.dart';
// need this for initializeDateFormatting()
import 'package:intl/date_symbol_data_local.dart';

// This lets magic happen!
import 'package:buddhist_datetime_dateformat/buddhist_datetime_dateformat.dart';

void main() {

  // set your default locale here. It will be applied to DateFormat autmomatically.
  Intl.defaultLocale = "th";


3. Use it #

  • You will found .yearInBuddhistCalendar property in DateTime's instance. This will return converted year value into Buddhist era.
  • Also .formatInBuddhistCalendarThai(datetime) method in DateFormat which return correct format for Thai language if you pass DateTime's instance into it.
var now = DateTime.now();
var onlyBuddhistYear = now.yearInBuddhistCalendar;

var formatter = DateFormat.yMMMMEEEEd();
var dateInBuddhistCalendarFormat = formatter.formatInBuddhistCalendarThai(now);

Open for contribution #

If you want to contribute, there are several countries that also use Buddhist calendar:

  • Thailand
  • Cambodia
  • Laos
  • MyanMar
  • Sri Lanka
  • Malaysia
  • Singapore

Reference: https:en.wikipedia.org/wiki/Buddhist_calendar

I don't know other langauge need a prefix for Buddhist year like in Thailand (พ.ศ.). If yes, so you can help me correct their format by update the code with your customization. Just make pull request.

[1.0.6] - 05/06/2020. #

  • fix link to Thai manual, finally

[1.0.5] - 05/06/2020. #

  • fix link to Thai manual

[1.0.4] - 05/06/2020. #

  • Add example photo in README.md

[1.0.3] - 05/06/2020. #

  • fix miscalculation in DateFormat

[1.0.2] - 05/06/2020. #

  • Add "How to use"
  • Add "How to use" in Thai

[1.0.1] - 05/06/2020. #

  • Formatted code
  • add example

[1.0.0] - 05/06/2020. #

  • Add extension for DateFormat with Thai's Buddhist calendar support (ค.ศ. เป็น พ.ศ.).
  • Add extension for DateTime that can get year by converted into Buddhist calendar's value.


import 'package:flutter/material.dart';
import 'package:intl/date_symbol_data_local.dart';
import 'package:intl/intl.dart';
import 'package:buddhist_datetime_dateformat/buddhist_datetime_dateformat.dart';

void main() {
  Intl.defaultLocale = "th";

class MyApp extends StatelessWidget {
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Nextflow Flutter Widget Today',
      theme: ThemeData(
        primarySwatch: Colors.blue,
        visualDensity: VisualDensity.adaptivePlatformDensity,
      home: MyHomePage(title: 'Flutter 3 นาที: วันเดือนปีไทยๆ'),

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  final String title;

  _MyHomePageState createState() => _MyHomePageState();

class _MyHomePageState extends State<MyHomePage> {
  Widget build(BuildContext context) {
    var now = DateTime.now();
    var onlyBuddhistYear = now.yearInBuddhistCalendar;

    var formatter = DateFormat.yMMMMEEEEd();
    var dateInBuddhistCalendarFormat = formatter.formatInBuddhistCalendarThai(now);

    return Scaffold(
        appBar: AppBar(
          title: Text(widget.title),
        body: Container(
          padding: EdgeInsets.all(10),
          child: Text('$dateInBuddhistCalendarFormat --- $onlyBuddhistYear'),

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:

  buddhist_datetime_dateformat: ^1.0.6

2. Install it

You can install packages from the command line:

with Flutter:

$ flutter pub get

Alternatively, your editor might support flutter pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:buddhist_datetime_dateformat/buddhist_datetime_dateformat.dart';
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Learn more about scoring.

We analyzed this package on Jul 2, 2020, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.8.4
  • pana: 0.13.13
  • Flutter: 1.17.5

Analysis suggestions

Package not compatible with SDK dart

because of import path [buddhist_datetime_dateformat] that is in a package requiring null.

Health issues and suggestions

Document public APIs. (-1 points)

5 out of 5 API elements have no dartdoc comment.Providing good documentation for libraries, classes, functions, and other API elements improves code readability and helps developers find and use your API.


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.7.0 <3.0.0
flutter 0.0.0
intl ^0.16.1 0.16.1
Transitive dependencies
collection 1.14.12 1.14.13
meta 1.1.8
path 1.7.0
sky_engine 0.0.99
typed_data 1.1.6 1.2.0
vector_math 2.0.8
Dev dependencies