Psalms 54:18

Evening. The Hebrew then began the day. (Calmet) (Genesis i. 5.) (Haydock) --- They had three times allotted for prayer, (Daniel vi. 10.) as the Church had afterwards. (Const. Ap.[Apostolic Constitutions?] vii. 25.) (Calmet) --- Evening song, matins, and the sacrifice of the mass, are the principal times for divine service. (Worthington) --- David comprises all times, because his prayer was continual. (Berthier) (Calmet)