Koiak 28 – Coptic calendar – Koiak 30 The twenty-ninth day of the Coptic month of Koiak, the fourth month of the Coptic year.
On a common year, this day corresponds to December 25, of the Julian calendar, and January 7, of the Gregorian calendar.
This day falls in the Coptic season of Peret, the season of emergence.
On this day, the Coptic Church celebrates the Feast of the Nativity.