Wiktionary
twenty hundred
n. The start of the twenty-first hour of the day on the 24-hour clock, i.e. 20:00.
Usage examples of "twenty hundred".
The holders of twenty hundred million dollars' worth of property in human chattels procured the means of influencing press, pulpit, and politician, and through these instrumentalities they belittled our virtues and magnified our vices, and have made us odious in the eyes of the world.
Her com unit buzzed, and Beggs informed her in his prosaic manner that her presence was requested for twenty hundred hours at the hangar for an emergency session of the complete Council.
Details will be provided at a formal briefing tonight at twenty hundred hours.