Determination of the day of the week for the following month. The item for January is "0"; for February or March, "3"; for December, "12". Day-item: The total, thus reached, must be corrected, by deducting "1" (first adding 7, if the total be "0"), if the date be January or February in a leap year, remembering that every year, divisible by 4, is a Leap Year, excepting only the century-years, in `New Style', when the number of centuries is not so divisible (e.g. 1800). The final result gives the day of the week, "0" meaning Sunday, "1" Monday, and so on. Examples: 17, divided by 4, leaves
Whit Monday the Deacon intones the same introit as on the day of Pentecost, and the dismissal is the same as on the day of Pentecost. Special canons to the Holy Spirit are chanted at Compline and Matins. The table on the right provides columns giving the dates on which Whit Monday is observed in both Western and Eastern Christianity. The Eastern Orthodox and Oriental Orthodox churches calculate Pascha (Easter) differently from the West (see Computus), and so the date of Whit Monday will be different most years. Whit Monday Whit Monday or Pentecost Monday (also known as Monday of the Holy