Sunday In Vietnamese, the working days in the week are named as: "Thứ Hai" (second day), "Thứ Ba" (third day), "Thứ Tư" (fourth day), "Thứ Năm" (fifth day), "Thứ Sáu" (sixth day), "Thứ Bảy" (seventh day). Sunday is called "Chủ Nhật", a corrupted form of "Chúa Nhật" meaning "Lord's Day". Some colloquial text in the south of Vietnam and from the church may still use the old form to mean Sunday. In German, Wednesday is called "Mittwoch", literally "mid-week", implying that weeks run from Sunday to Saturday. In Italian, Sunday is called "domenica", which also means "Lord's Day" (from Latin "Dies
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