Hour

An hour was a unit of time, twenty-four of which typically composed one day on Earth. (TV: )

The space hour was used by the Tyrryxians. (COMIC: )

The Fifth Doctor once retrieved the Key to Time in less than one galactic hour. (GAME: )

According to Ashildr, ten thousand hours was all it took to master any skill and, after over a hundred thousand hours, one became the best there had ever been. (TV: )

History
The disappearance of Captain T. A. Solomon and the rest of the eight man crew was reported to the coastguard's office in the early hours of the morning of 18 July 1888 after the crash of their ship the previous day. (PROSE: )

In the 1950s, hours of television broadcast in the United Kingdom were strictly limited by the British government, and each evening's broadcasts from Alexandra Palace ended between 10.30 and 11pm with the National Anthem. (PROSE: )

Joanne Marsden was half an hour late to work after the Ninth Doctor hijacked the 68 to Bolton in the early 21st century. (PROSE: )

In the morning following (PROSE: ) the Slitheen family's attempt to destroy Earth on 6-7 March 2006, (TV:, ) merely just hours later, Mickey wrote about the defeat of the Slitheen, the UNIT website, and the virus that would erase the Ninth Doctor off the Internet on his website, Who is Doctor Who?. (PROSE: )

Met by Sunday Mirror journalist Vivien Rook at 10 Downing Street, First Lady Lucy Saxon rhetorically asked if she could have an hour to herself, however, she was convinced to give a twenty minute interview. (TV: )

Undated events
In the Toyroom, Gaylord Lefevre and the Celestial Toymaker played cards for hours, as well as taking a halt for a few hours, in which time Lefevre tried to cheat against the Toymaker by marking the cards. (COMIC: )

Behind the scenes

 * In an early draft of The End of Time, Russell T Davies had the Tenth Doctor address the "half-human" statement the Eighth Doctor made in the 1996 TV movie, dismissing it as "a forty-eight-hour bug". The line was cut by Davies for several stated reasons, including the fact it would have confused viewers who were only familiar with the events of the episode Human Nature.