The Orthodox Christian date for Easter Sunday, also known as Pascha, is often at a later date than the Easter date observed by many western churches. Orthodox Christians in Canada celebrate Pascha according to the Easter date in the Julian calendar. Pascha is the most important event in the church calendar in the Orthodox Church. Many Orthodox Christians attend church liturgies during the Holy Week that leads up to Easter Sunday. The Easter Sunday church liturgy is joyous as it celebrates Jesus Christ’s resurrection, as told in the Christian bible. The Orthodox church bases its Easter date on the Julian calendar, which differs from the Gregorian calendar that is used by many western countries. Therefore the Orthodox Easter period often occurs later than the Easter period that falls after the time of the March equinox. https://www.timeanddate.com/