Ethiopian Calendar. In ethiopia, the 13 month ethiopian calendar is used as the official calendar. The official ethiopian calendar is known as the amharic calendar, a schedule that also serves as the liturgical year in ethiopia and eritrea for the christians who belong to.
The ethiopian calendar has twelve months of thirty days plus five or six epagomenal days, which comprise a thirteenth month. The ethiopian year is divided into 12 months of thirty days each and one intercalary month of 5 days, or 6 days in a leap year.