The hour (common symbol: h or hr) is a unit of measurement of time. In modern usage, an hour comprises 60 minutes, or 3,600 seconds. It is approximately 1/24 of a mean solar day.
An hour in the Universal Coordinated Time (UTC) time standard can include a negative or positive leap second, and may therefore have a duration of 3,599 or 3,601 seconds for adjustment purposes.
Although it is not a standard defined by the International System of Units, the hour is a unit accepted for use with SI, represented by the symbol h.
Read more about Hour: Etymology, History, Counting Hours, Derived Measures and Applications
Other articles related to "hour, hours":
... Expedición al Himalaya Bolliger Mabillard 83 miles per hour (134 km/h) 249 feet (76 m) 5,410 feet (1,650 m) 2012 Dragon Khan Bolliger Mabillard 65 miles per hour (105 km/h) 148 feet (45 m ...
... Miles per hour is an imperial unit of speed expressing the number of statute miles covered in one hour ... speeding case by examining speeds in both kilometres per hour and miles per hour ... unit of speed one knot is one nautical mile per hour ...
... is meters per second, in everyday usage kilometres per hour or, in the USA and the UK, miles per hour are more practical ... Occasionally the metre per hour is used for slow-moving objects like snails ... Worker compensation is commonly based on working time in terms of number of hours worked, referred to as an hourly wage ...
... A rush hour or peak hour is a part of the day during which traffic congestion on roads and crowding on public transport is at its highest ...
... At the top of every hour, a recording of Dick Covington (who died in 2004 all other station imaging is done by Sean Caldwell) is played announcing the following information "All news, all the time ... serving Pennsylvania, New Jersey, and Delaware." At 02, 12, 22, 32, 42 and 52 after the hour, traffic transit reports ("on the twos") are introduced with car horns sounding the first five ... At 30 past the hour, the recording is slightly different, with Covington announcing that "the newswatch never stops" (borrowed from sister station WINS ...
Famous quotes containing the word hour:
“I still feel just as I told you, that I shall come safely out of this war. I felt so the other day when danger was near. I certainly enjoyed the excitement of fighting our way out of Giles to the Narrows as much as any excitement I ever experienced. I had a good deal of anxiety the first hour or two on account of my command, but not a particle on my own account. After that, and after I saw that we were getting on well, it was really jolly. We all joked and laughed and cheered constantly.”
—Rutherford Birchard Hayes (1822–1893)
“Words today are like the shells and rope of seaweed which a child brings home glistening from the beach and which in an hour have lost their lustre.”
—Cyril Connolly (1903–1974)
“My father and mother in 1817 were forty-nine days on the road with their emigrant wagons [from Vermont] to Ohio. More than two days for each hour that I spent in the same journey.”
—Rutherford Birchard Hayes (1822–1893)