Easter Sunday is celebrated on the first Sunday after the full moon following the Northern Hemisphere's spring equinox. Christians gather for sunrise services and Easter vigils lighting new fires and candles to celebrate Jesus rising from the dead on the third day after his crucifixion. Traditional Easter foods include roast lamb, boiled eggs, and Simnel cake, while children enjoy hunting for chocolate eggs and receiving other chocolate treats like eggs and biscuits as gifts. The date of Easter varies year to year depending on the lunar calendar.