Definition:Clock/Hand

Definition
The pointers on an analogue clock are known as its hands.
 * Analogue-clock.png

Second Hand
The hands are usually distinguished one from another by the fact that the minute hand is longer than the hour hand.

A second hand, if it exists, is then usually distinguished from the other two not only by being of a different colour, but also by moving fast enough for it to be obvious that it is in motion.