Timekeepers is a British game show that aired on BBC1 from 3 January 1995 to 2 February 1996.
Results of this challenge were entered on a leaderboard; the contestants with the best standings during a series returned at its end to play for a major prize.
Each contestant in turn was asked three questions about their fields of interest, and lost 10 seconds for each incorrect answer.
The host read a toss-up clue whose answer could be formed by combining two of the words.
Contestants had to respond by naming a time on the clock, using the first word for the hours and the second one for the minutes.
(E.g. with SHORT at 10 and STOP at 1, the clue "Found between second and third base in baseball" would lead to SHORTSTOP and a time of 10:05.)
(E.g. with HUNCH at 23 and BACK at 17, the clue "The bell-ringer at Notre Dame was this" would lead to HUNCHBACK and a time of 2325.