What is the difference between Ethiopia calendar and Greek calendar ?

The Ethiopian calendar, also known as the Ge'ez calendar, is a solar calendar that is based on the Coptic calendar. It is used in Ethiopia and Eritrea and follows the Julian calendar system. The Ethiopian calendar has 13 months, with 12 months of 30 days each and a 13th month of 5 or 6 days, depending on whether it is a leap year or not.

On the other hand, the Greek calendar is a lunisolar calendar that is based on the ancient Greek calendar system. It was used in ancient Greece and is no longer in use today. The Greek calendar had 12 months, with alternating lengths of 29 and 30 days. It also had a 13th month added every few years to align the lunar and solar cycles.

In summary, the main differences between the Ethiopian calendar and the Greek calendar are:

1. Basis: The Ethiopian calendar is based on the Coptic calendar and follows the Julian calendar system, while the Greek calendar is based on the ancient Greek calendar system.

2. Number of Months: The Ethiopian calendar has 13 months, while the Greek calendar has 12 months.

3. Month Lengths: The Ethiopian calendar has 12 months of 30 days each and a 13th month of 5 or 6 days, while the Greek calendar has alternating month lengths of 29 and 30 days.

4. Current Usage: The Ethiopian calendar is still in use today in Ethiopia and Eritrea, while the Greek calendar is no longer in use.