How do I time time-outs and the intervals between quarters?

The timer uses a stopwatch for these (Art. 50.3, 50.4 and 8).

Time-outs (1 minute each):

• Start the stopwatch when the referee whistles and gives the time-out signal.
• Sound the signal when 50 seconds have gone.
• Sound the signal again when the time-out has ended.

Intervals of play:

• Start the stopwatch as soon as a quarter or overtime ends.
• Before the 1st and 3rd quarters, tell the referees when 3 minutes and 1.5 minutes remain. The crew chief then whistles.
• Before the 2nd and 4th quarters and each overtime, sound the signal when 30 seconds remain.
• Sound the signal, and stop the stopwatch at the same time, when the interval ends.