Speed of Minute Hand

Theorem
Consider an analogue clock $C$.

The minute hand of $C$ rotates at $6$ degrees of arc per minute.

Proof
It takes one hour, that is $60$ minutes, for the minute hand to go round the dial one time.

That is, in $60$ minutes the minute hand travels $360 \degrees$.

So in $1$ minute, the minute hand travels $\dfrac {360} {60} \degrees$, that is, $6 \degrees$.

Also see

 * Speed of Hour Hand