On the first day of the week, the day of the Lord Jesus, God our Father assembles His people to sing His praises. Sunday has a unique place in Christian worship. It is a day for the whole community to gather to celebrate the Eucharist in communion with the universal Church. Mass on this day is to be celebrated in accordance with the readings and prayers set forth by the Church in the liturgical calendar. For this reason, it is not a day for particular celebrations such as funeral Masses.
In Canada funeral Masses may be celebrated any day other than Sundays, Christmas Day, New Year’s Day, Holy Thursday, and during the Easter Triduum (from the Mass of the Lord’s Supper to Easter Sunday inclusively).