The words Bahire Hasab originate from the ancient language of Ge'ez, ( Arabic: Abu Shakir) is a time-tracking method, devised by the 12th pope of Alexandria, Pope St. Dimitri.
"Bahire Hasab /'bəhrɛ həsəb'/ " simply means "An age with a descriptive and chronological number". In some books it can also be found as "Hasabe Bahir", in a sense giving time an analogy, resembling a sea.
This package allows developers to implement Ethiopian Calendar and Datetime System in their application(s)`.
This package is implemented using the UNIX EPOCH which means it's not a conversion of any other calendar system into Ethiopian, for instance, Gregorian Calendar.
Unix Epoch is measured using milliseconds since 01 Jan, 1970 UTC. In unix epoch leap seconds are ignored.
Before you begin, ensure you have met the following requirements:
equatable= ^2.0.5
In the pubspec.yaml of your flutter project, add the following dependency:
dependencies:
...
abushakir: "^1.0.0"In your library add the following import:
import 'package:abushakir/abushakir.dart'; /**
* Ethiopian Datetime Module [EtDatetime]
*/
EtDatetime now = new EtDatetime.now(); // => 2012-07-28 17:18:31.466
print(now.date); // => {year: 2012, month: 7, day: 28}
print(now.time); // => {h: 17, m: 18, s: 31}
EtDatetime covidFirstConfirmed = new EtDatetime(year: 2012, month: 7, day: 4);
EtDatetime covidFirstConfirmedEpoch =
new EtDatetime.fromMillisecondsSinceEpoch(covidFirstConfirmed.moment);
EtDatetime covidFirstDeath = EtDatetime.parse("2012-07-26 23:00:00");
/// Comparison of two EtDatetime Instances
Duration daysWithOutDeath = covidFirstConfirmed.difference(covidFirstDeath);
assert(daysWithOutDeath.inDays == -22, true); // 22 days
assert(covidFirstDeath.isAfter(covidFirstConfirmed), true);
assert(covidFirstDeath.isBefore(now), true);
assert(covidFirstConfirmed.isAtSameMomentAs(covidFirstConfirmedEpoch), true);
/**
* Ethiopian Calendar Module [ETC]
*/
ETC ethiopianCalendar = new ETC(year: 2012, month: 7, day: 4);
///
print(ethiopianCalendar.monthDays(geezDay: true, weekDayName:true)); // Iterable Object of the given month
print(ethiopianCalendar.monthDays().toList()[0]); // => [2012, 7, ፩, አርብ]
// [year, month, dateNumber, dateNameIndex], Monday as First weekday
print(ethiopianCalendar.nextMonth); // => ETC instance of nextMonth, same year
print(ethiopianCalendar.prevYear); // => ETC instance of prevYear, same month
/**
* Bahire Hasab Module [BahireHasab]
*/
BahireHasab bh = BahireHasab(year: 2011);
// BahireHasab bh = BahireHasab(); // Get's the current year
print(bh.getEvangelist(returnName: true)); // => ሉቃስ
print(bh.getSingleBealOrTsom("ትንሳኤ")); // {month: ሚያዝያ, date: 20}
bh.allAtswamat; // => List of All fasting and Movable holidays
/**
* Arabic or English number (1,2,3...) to Ethiopic or GE'EZ (፩, ፪, ፫...) number Converter
*/
var input= [1, 10, 15, 20, 25, 78, 105, 333, 450, 600, 1000, 1001, 1010, 1056, 1200, 2013, 9999, 10000];
for (var arabic in input) {
print(ConvertToEthiopic(arabic)); // [፩, ፲, ፲፭, ፳, ፳፭, ፸፰, ፻፭, ፫፻፴፫, ፬፻፶, ፮፻, ፲፻, ፲፻፩, ፲፻፲, ፲፻፶፮, ፲፪፻, ፳፻፲፫, ፺፱፻፺፱, ፻፻]
}
/*
* Conversion from any calendar (in this case, Gregorian) into Ethiopian Calendar.
*/
DateTime gregorian1 = new DateTime.now();
EtDatetime ethiopian1 = new EtDatetime.fromMillisecondsSinceEpoch(gregorian1.millisecondsSinceEpoch);
print("Gregorian := ${gregorian1.toString()} is equivalent to Ethiopian ${ethiopian1.toString()}");
// Gregorian := 2020-09-22 23:36:37.042962 is equivalent to Ethiopian 2013-01-12 20:36:37.042
/*
* Conversion from Ethiopian Calendar into any calendar (in this case, Gregorian).
*/
EtDatetime ethiopian = new EtDatetime.now();
DateTime gregorian = new DateTime.fromMillisecondsSinceEpoch(ethiopian.moment);
print("Ethiopian ${ethiopian.toString()} is equivalent to Gregorian := ${gregorian.toString()}");
// Ethiopian 2013-01-12 20:36:37.044 is equivalent to Gregorian := 2020-09-22 23:36:37.044
print("Ethiopian EPOCH := ${ethiopian.moment}"); // Ethiopian EPOCH := 1600806997044
print("Gregorian EPOCH := ${gregorian.millisecondsSinceEpoch}"); // Gregorian EPOCH := 1600806997044
For further implementation example see this flutter application
Thanks to the following people who have contributed to this project:
If you want to contact me you can reach me at nabute925@gmail.com.
This project is licensed under the MIT License - see the LICENSE.md file for details