Orthodox Easter, also known as Pascha, is the most significant religious celebration for many Eastern Orthodox Christians. It commemorates the resurrection of Jesus Christ and is observed on a different date than Western Easter due to the use of the Julian calendar instead of the Gregorian calendar. The date varies each year, falling between April 4 and May 8. The celebration begins with a midnight service, where believers gather to chant hymns and light candles. Traditional customs include a festive meal, often featuring lamb, red-dyed eggs, and sweet bread called kulich. The week leading up to Easter, known as Holy Week, involves various religious observances and fasting.