Seker Bayrami: Three-day festival when sweets are eaten to celebrate the end of the fast of Ramadan. Also known as Ramazan Bayrami. This is one of the major National Festivals in Turkey and follows the Ramadan.
Kurban Bayrami: Four-day festival when sacrificial sheep are slaughtered and their meat distributed to the poor. This festival is the Feast of the Holy Sacrifice about 40 days after the end of Ramadan.
The dates of these religious festivals change according to the Islamic calendar an thus occur 10-11 days (exact difference between Gregorian and Lunar calendars is 10 days and 21 hrs) earlier each year.