Minute

A minute was a unit of time measurement. Though not the smallest such unit, it was still most useful for measuring only short spans of time.

When sent back in time, Donna Noble remarked she had to run half a mile in four minutes to correct history. (TV: Turn Left)

When revived on Karn, the Eighth Doctor learned he had only four minutes to live. (TV: The Night of the Doctor)

When poisoned by River Song, the TARDIS' voice interface remarked the Eleventh Doctor would die in thirty six minutes. (TV: Let's Kill Hitler)