Nkọwa (introduction) Like most groups, the Igbos have adopted the Western seven day week. But for them, Monday is the first day of the week(“ụbọchi mbụ na izuụka”) and Sunday is the last day of the week. (ụbọchị asaa na izuụka”.) The days of the week are very essential to the Igbos because each of these days has a market day attached to it. Nevertheless, in talking about the days of the week, we simply translate them based on the number of the days of the week e.g, “ụbọchị mbụ na izuụka (first day of the week) = Monday, ụbọchị abụọ na izuụka (second day of the week ) = Tuesday.