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 "Great and Holy Week", or "Passion Week". Since the Orthodox liturgical day starts at sunset (as it has from antiquity), Holy Monday services begin Sunday evening, at the normal timing for Monday Vespers (Vespers is the first service of the day). However, during Holy Week, in most parishes, many service times are advanced from six to twelve hours in time and celebrated in anticipation, which permits more of the faithful to attend the most prominent services. Thus, it is the matins service of Great Monday that is on "Palm Sunday" evening in parish churches and often vespers is in the