Why is Ethiopia's year 7 or 8 years behind, and how does the 13-month calendar actually work?

Ethiopia uses its own calendar, and it affects daily life, holidays and paperwork. The structure - 13 months: twelve months of 30 days, plus Pagume with 5 days (6 in leap years). - It is based on the Coptic calendar. - The new year, Enkutatash, falls on 11 September in the Gregorian calendar (12 September in leap years). The gap - Ethiopian years run about 7 to 8 years behind the Gregorian count, depending on the time of year (before or after 11 September). - Sources explain the gap through different calculations of when Jesus was born or the Annunciation. One tradition places this at 7 BC. Treat the historical explanations with care, because several web pages repeating them are low quality. Why it matters - Religious holidays follow it. Genna (Christmas) is on 7 January and Timkat on 19 January in the Gregorian calendar in 2026. - Government, school and many business documents use it, so when you deal with foreign institutions, specify which calendar a date uses. A tip for diaspora and foreigners: write the date with both calendars when it matters, such as a birth date or a contract. Your turn: have you had a date mix-up between calendars, how does your family celebrate Enkutatash, and how do you explain Pagume to friends abroad?