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## 'Clocking Off' printed from http://nrich.maths.org/

These clocks can be found in the Arts Centre at the University
of Warwick.

What was the time when I took this picture?

If I hid one of the clocks would you still be able to tell the
time?

Would it make a difference which clock I covered?

Would there be periods of the day when I could not work out
the time if there were only three clocks and what would those
periods be for different combinations of three clocks?

Below are some pictures of just two of the clocks. What periods
during the day would you not be sure of the time in each
case?