Question 1

How do I know the current Coptic year?

Accepted Answer

Subtract 283 or 284 from the Gregorian year depending on the month. Before September subtract 284, after subtract 283.

Question 2

Why is month 13 short?

Accepted Answer

Month 13 (Nasie/Epagomenal) contains extra days to complete the solar year: 5 days in regular years, 6 in leap years.

Question 3

How accurate is the conversion?

Accepted Answer

The conversion is very accurate since both calendars are solar. The difference with Julian calendar is fixed.

Coptic to Gregorian Date Converter