What is the Ethiopian Calendar?

The Ethiopian calendar is a living civil calendar with its own era numbering and 13-month structure. Its year numbering differs from the Gregorian year.

How the calendar is structured

12 months of 30 days plus Pagumen, a 5- or 6-day 13th month.

Where and why it is used

Region: Ethiopia. Primary context: Civil and religious use in Ethiopia.

History and development

The system belongs to the Late Antique to Modern layer of the archive. Its origin is summarized as Alexandrian tradition. CalculatorWiser separates historical reconstruction, religious observance, civil use, and modern technical standards so different systems are not treated as though they all work the same way.

Visual reference gallery

Conversion and accuracy notes

Some calendar systems can be converted deterministically with modern algorithms. Others depend on observation, local authority, historical reconstruction, or regional practice. CalculatorWiser marks those distinctions rather than presenting uncertain dates as exact.

Research trail

This entry is part of the research-backed World Calendar Archive. Primary research anchor for this entry: Ethiopian calendar references.