Ethiopian Calendar description

Ethiopian Calendar is also called the Ge'ez calendar The Ge'ez Calendar is the official calendar in Ethiopia. It is based on the Coptic calendar with a leap day, every four years. The Ethiopian Calendar has twelve months with 30 days each and a thirteenth month called Pagume with five or six days depending on the year.
(የኢትዮጲያ የቀን መቁጠሪያ)