a period regularly or customarily appointed for work, business, etc
one's times of rising and going to bed (esp in the phrases keep regular, irregular, or late hours )
an indefinite period of time
Also called (in the Roman Catholic Church): canonical hours.
the seven times of the day laid down for the recitation of the prayers of the divine office
the prayers recited at these times
the hours just after midnight
until very late
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
By measuring the generated thrust and operating the thrusters continuously for periods of up to 100 hours, the team was able to assess the fuel's performance and efficiency.
From Science Daily • Jun. 10, 2026
So let us know how you plan to watch—and if you have any strategies for getting your loved ones to let you park yourself on the coach eight hours of soccer a day.
From The Wall Street Journal • Jun. 10, 2026
Other measures to help pubs include "reforming business rates, with a £4.3bn support package to limit bills rises, capping Corporation Tax at 25%, and extending World Cup opening hours for pubs," the spokesperson added.
From BBC • Jun. 10, 2026
An intensive coding session by a programmer can burn through one million tokens in a matter of hours or less.
From Barron's • Jun. 9, 2026
After walking on the dusty, compacted gravel floor of the midway for the last three hours, they feel like they’re two sizes bigger than they actually are.
From "Red Flags and Butterflies" by Sheryl Azzam
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
