Maundy Thursday the country in which they live. The "Book of Common Prayer" of the Church of England, which is the mother Church of the Anglican Communion, uses the name "Maundy Thursday" for this observance. The corresponding publication of the US Episcopal Church, which is another province of the Anglican Communion, also refers to the Thursday before Easter as "Maundy Thursday". Throughout the Anglican Communion, the term "Holy Thursday" is a synonym for Ascension Day. , the Roman Rite of the Catholic Church uses the name "Holy Thursday" in its official English-language liturgical books. The personal ordinariates in the Catholic Church, which
Determination of the day of the week the intended design objective. The tabular forerunner to Tøndering's algorithm is embodied in the following K&R C function. With minor changes, it was adapted for other high level programming languages such as APL2. Posted by Tomohiko Sakamoto on the comp.lang.c Usenet newsgroup in 1992, it is accurate for any Gregorian date. IBM's Rata Die method requires that one knows the "key day" of the proleptic Gregorian calendar i.e. the day of the week of January 1, AD 1 (its first date). This has to be done to establish the remainder number based on which the day of the week is