Responsories for Holy Week Responsories for Holy Week Responsories for Holy Week (Latin: Responsoria pro hebdomada sancta) are three sets of nine responsories, for Maundy Thursday, Good Friday and Holy Saturday respectively, the three days of the Holy Week preceding Easter Sunday. They are also known as the Tenebrae responsories, and were set to music for instance by Carlo Gesualdo ("Responsoria et alia ad Officium Hebdomadae Sanctae spectantia", 1611) and by Jan Dismas Zelenka (ZWV 55). The Night Hours ("preceding" the Little Hours) of Maundy Thursday, Good Friday and Holy Saturday consist of matins (each with three nocturns) and lauds. The lessons of these
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