ethiopian-calendar

Ethiopian calendar and feasts library for Go

Installation

Install using go get as:

go get github.com/lgirma/ethiopian-calendar

Usage

Date Conversions

To convert a date in Ethiopian calendar to Gregorian calendar, use ToGregorian() as:

// Convert 8/10/2014 from EC to GC
ethcal.ToGregorian(ethcal.NewDate(2014, 10, 8))

To convert a date in Gregorian calendar to Ethiopian calendar, use ToEthiopian() as:

// Convert 01/01/2022 from GC to EC
ethcal.ToEthiopian(ethcal.NewDate(2022, 01, 01))

Moving Feasts

The Easter and related feasts in the Ethiopian Orthodox Tewahedo Church are not pinned to specific dates.

To get on which day of year a feast will be at:

// Get date of start of the 'Tsome Nenewe' (fast of Nineveh) for the year 2014 in Ethiopian Calendar
ethcal.GetNineveh(2014)  // Same as GetNenewe()

// Get date of start of the Great lent for the year 2014 in Ethiopian Calendar
ethcal.GetFeast(ethcal.FEAST_ABIY_TSOM, 2014)

// Get date of Easter for the year 2013 in Ethiopian Calendar
ethcal.GetFeast(ethcal.FEAST_TINSAE, 2013)

The following feasts are available:

FEAST_ABIY_TSOM = 14            // Or can use FEAST_GREAT_LENT
FEAST_DEBREZEIT = 41
FEAST_HOSAENA = 62
FEAST_SIQLET = 67               // Or can use FEAST_GOOD_FRIDAY
FEAST_TINSAE = 69               // Or can use FEAST_EASTER
FEAST_RIKBE_KAHINAT = 93
FEAST_ERGET = 108               // Or can use FEAST_ASCENSION
FEAST_PERAQLITOS = 118          // Or can use FEAST_PENTECOST
FEAST_TSOME_HAWARIAT = 119      // Or can use FEAST_APOSTLES_FAST

i18n Utilities

Utilities to convert date and month values to Amharic/Geez strings are also available.

// Indices starting from 1.

ethcal.MONTH_NAMES[1]
ethcal.MONTH_NAMES[ethcal.MONTH_SEP]
// Both return "መስከረም"

ethcal.DAY_NAMES[2]
ethcal.DAY_NAMES[ethcal.DAY_WED]
// Both return "ረቡዕ"

ethcal.EVANGELISTS_NAMES[1]
ethcal.EVANGELISTS_NAMES[etcal.EVANGELIST_MARK]
// Both return "ማርቆስ"

License

ISC License