The September Ember Days always fall after September 14 (Feast of the Exhaltation of the Holy Cross). This date nearly coinicides with the end of summer, which for the ancients was September 12 (pridie Idibus Spetembris). The Ember Days of einter, spring, and summer do not coincide so exactly with the beginning of the respective seasons.There are 12 days each of 3 being Wednesday, Friday and Saturday.
These were obligatory Fasting and complete abstinence days. This means abstinence from flesh meats and only a single meal of note for the fast day
They are celebrated to implore God’s blessings on the fruits of the earth, and to pray for the clergy.