Wiktionary
n. The start of the second hour in both the 12-hour and the 24-hour clock; 1:00.
Usage examples of "one o'clock".
It was after one o'clock, that time of night when the body is in its deepest slumber, when it is most vulnerable to death.
Graice Courtney's one o'clock American literature class, held in a third floor lecture hall in the antiquated Hall of Languages, Syracuse University, a Gothic structure of fifteen foot cracked ceilings and falling plaster and violently clanking radiators, isn't dismissed so much as abandoned, shortly before 1:50 P.
By one o'clock I was shivering and miserable, soaking wet, close to peeing in my pants.
The Vizier has just sent me word that the treaty, in the exact terms we agreed upon, is ready, and I am to attend for signature at one o'clock, which the court astrologer declares a propitious hour.
Captain Aubrey presents his compliments to Mr Marshall and will come aboard at about one o'clock in the afternoon.
At one o'clock in the morning, Grosjean himself was thankful to get back to bed, having satisfied the commissary that he was not a dangerous conspirator.
Fagin, the poacher, was sneakin' home that night about one o'clock with a bag full of rabbits undher his arm, whin, hearing behind him the bate of horse's hoofs and the sound of most maylodious music, he jumped into the ditch and lay close within the shadow.