Christmas is usually celebrated as a one-day holiday involving special church services, gift-giving, feasting, and spending time with family. People decorate Christmas trees and believe Santa Claus delivers presents down the chimney. Valentine's Day is celebrated by exchanging cards and gifts between sweethearts and lovers, though it is not a national holiday. Easter commemorates the resurrection of Jesus Christ and falls between March 22nd and April 25th, preceded by Lent. It involves sunrise church services, decorated eggs, and wearing new clothes for good luck.