A natural language date parser in Dart. Finds and extracts dates from user-generated text content.

Example use case – WhatsApp-like date parsing in dialogues:

It is designed to handle most date/time formats and extract information from any given text:

• Today, Tomorrow, Yesterday, Last Friday, etc
• 17 August 2013 - 19 August 2013
• This Friday from 13:00 - 16.00
• 5 days ago
• 2 weeks from now
• Sat Aug 17 2013 18:40:39 GMT+0900 (JST)
• 2014-11-30T08:15:30-05:30

1. Install manually or via pub - dart pub add chrono_dart
2. Simply pass a string to functions Chrono.parseDate or Chrono.parse.

import 'package:chrono_dart/chrono_dart.dart' show Chrono;

Chrono.parseDate('An appointment on Sep 12');
// DateTime('2023-09-12 12:00:00.000Z')
    
Chrono.parse('An appointment on Sep 12');
/* [<ParsingResult>{ 
    index: 18,
    text: 'Sep 12',
    date() => DateTime('2023-09-12T12:00:00'),
    ...
}] */

Only English is supported in this version. Feel free to add PRs with any other languages – the package is designed with extendability in mind.

Port of Chrono to Dart lang. For extended API information see the original package.