[Ref Daddy]

SECTION 12 TIMER'S DUTIES
The timer shall:
ART. 1 . . . Note when each half is to start and shall notify the referee more than three minutes before this time so the referee may notify the teams, or cause them to be notified, at least three minutes before the half is to start.
ART. 2 . . . Signal the scorer three minutes before starting time.
ART. 3 . . . Be provided with a clock to be used for timing quarters, extra periods and intermissions, and a stopwatch for timing time-outs. The clock shall be operated by the official timer. The clock and a stopwatch shall be placed so

that they may be seen by the timer. The clock shall be started or stopped as prescribed in Rule 5-8, 10.
ART. 4 . . . Sound a warning signal 15 seconds before the expiration of an intermission or a 60-second charged time-out and at 20 seconds of a 30-second time-out, immediately after which the players shall prepare to be ready to resume play, and signal again at the end of the intermission or time-out.
ART. 5 . . . Sound a warning signal at 20 seconds of the 30 seconds (maximum) permitted for replacing a disqualified or injured player, or for a player directed to leave the game.

ART. 6 . . . Stop the clock at the expiration of time for each quarter or extra period, and when an official signals time-out, as in 5-8. For an intermission or a charged time-out, start the stopwatch and signal the referee as outlined in Article 5.
ART. 7 . . . Indicate by signal the expiration of playing time in each quarter or extra period. This signal terminates player activity. If a supplementary red light is used, the timer's signal is the official expiration of playing time.