Mfungo wa Krismasi ni siku za toba zinazozingatiwa na Kanisa la Mashariki katika kuandaa sherehe ya Krismasi. Unafanana na Majilio katika Kanisa la Magharibi, isipokuwa unachukua siku 40 na kukazia utukufu wa umwilisho wa Mwana wa Mungu. Mfungo unaanzia tarehe 15 Novemba na kuendelea hadi tarehe 24 Desemba. 25 Desemba on the traditional Julian Calendar (O.S.) falls on 7 Januari of the modern Gregorian Calendar (N.S.). All dates in this article refer to the dates as they are written in the Menaion. For those churches which follow the Julian Calendar, the date on the Gregorian Calendar will be 13 days later (25 Desemba Julian = 7 Januari Gregorian). For those churches following the Revised Julian Calendar, the services will be celebrated on the date given here, according to the calculation of the Gregorian Calendar. Wikimedia Commons ina media kuhusu: Mfungo wa Krismasi Sunday of the Forefathers Orthodox icon and synaxarion Sunday before the Nativity Eve of the Nativity