Determination of the day of the week *104804 + 4, "n" = 104804 and "k" = 4 which implies that August 13, 2009 is the fourth day into the 104805th week since 01/01/0001. 13 August 2009 is Thursday; therefore, the first day of the week must be Monday, and it is concluded that the first day 01/01/0001 of the calendar is "Monday". Based on this, the remainder of the ratio "Base/7", defined above as "k", decides what day of the week it is. If "k" = 0, it's Monday, "k" = 1, it's Tuesday, etc. Determination of the day of the week The determination of the day
Holy Week During the Eucharist, the newly baptised receive Holy Communion for the first time. According to the rubrics of the Missal, the Eucharist should finish before dawn. Easter Sunday, which immediately follows Holy Week and begins with the Easter Vigil, is the great feast day and apogee of the Christian liturgical year: on this day the Resurrection of Jesus Christ is celebrated. It is the first day of the new season of the Great Fifty Days, or Eastertide, which runs from Easter Sunday to Pentecost Sunday. The Resurrection of Christ on Easter Sunday is the main reason why Christians keep Sunday