jour

le jour (FR N-M) day, a period of 24 hours determined by one rotation of the earth; the light that the sun throws upon the earth; an aperture in a wall that lets light pass through (window). Early on, the term »day« did not denote a period of 24 hours, but the cycle of daylight and darkness. The Bible–book of Genesis relates: ». . . the evening and the morning were the first day . . .« and so on, hence day actually began with darkness. Babylonians and Hindus calculated from one sunrise to the…