Responsories for Holy Week nocturn of Maundy Thursday are from Saint Augustines "Enarrationes in Psalmos" Second of Poulenc's "Sept répons des ténèbres". The lessons for the third nocturn of Maundy Thursday are from 1 Corinthians II: 17-34 First of Poulenc's "Sept répons des ténèbres". Good Friday is the sixth day (Latin: Feria VI or Feria Sexta) of the Holy Week. In Latin the occasion is also indicated as "In Parasceve" (Parasceve being Latin for Friday). Thus the second set of nine responsories for Holy Week can appear under titles such as "Feria VI – In Parasceve". The lessons of the first nocturn of Good
Determination of the day of the week ISO 8601. The day designated with 7 may also be counted as "0", by applying the arithmetic modulo 7, which calculates the remainder of a number after division by 7. Thus, the number 7 is treated as 0, 8 as 1, 9 as 2, 18 as 4 and so on. If Sunday is counted as day 1, then 7 days later (i.e. day 8) is also a Sunday, and day 18 is the same as day 4, which is a Wednesday since this falls three days after Sunday. The basic approach of nearly all of the methods to calculate the