Tardis

Spoilers are precisely defined here. Rules vary by the story's medium. Info from television stories can't be added here until after the top or bottom of the hour, British time, closest to the end credits roll on BBC One. Therefore, fans in the Americas who are sensitive to spoilers should avoid Tardis on Sundays until they've seen the episode.

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Tardis
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Tardis

A cycle was a unit of time used by several species, including the Sontarans, (COMIC: Pureblood) Chelonians, (PROSE: Zamper) and the Sensorites. (AUDIO: Sphere of Influence)

The Cybermen also measured time in cycles. (AUDIO: Hour of the Cybermen) During the Great Cyber War, the Super Controller stated that at the current rate of attrition, Cyber-operations on Telos would become untenable in 2.55 cycles, then he would cease to function. (AUDIO: Last of the Cybermen)

For Thals, "fifty cycles" was many decades, spanning four generations. (AUDIO: Return to Skaro)

Ice Warriors used "cycle" as well as "solar cycle," along with hours. (AUDIO: The Ordeal of Peladon)

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