Promoting and developing youth lacrosse in Davis

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Timekeeper guidelines

Be at the field at least 25 minutes before the start of the game.
1.  Check to make sure the clocks work and there are extra batteries for clocks.
2.  Time format - Make sure you know the time format for the game. 
For CIF and club HS, use NFHS time formats - Quarters - Varsity and JV 12 min stop clock qtrs;
Seniors (U15) 10 minute stop clock qtrs; See NCJLA rules
Juniors (U13) 10 minute stop time qtrs; See NCJLA rules
Lightning (U11) four 12 minute run time qtrs; See NCJLA rules
Lightning (U117) four 10 minute run time qtrs; See NCJLA rules
PeeWee (U9) four 10 minute run time qtrs; See NCJLA rules
Stop clock games go to running time if there is a 10 goal differential (NCJLA HS, U15 & U13) and 12 goal differential (CIF HS) in the second half only.  Inform/coordinate with coaches and officials.
Overtime – check with officials and rules above; CIF HS 4 minutes sudden victory;
2. Starting and stopping the game clock –
Clock starts and stops on the referees’ whistle if the game is in stop clock mode.
Clock stops for time outs. Referees will keep time on time outs (2 minutes in total).
Clock stops for injuries
3. Informing officials and coaches about time and use of the horn –
Count down OUT LOUD the last 10 seconds from 10 to 0 for end of each period and for penalties.  
Sound the horn at the end of each period.
Announce 1 minute before the end of each quarter; In last quarter give a 2 minute warning.
For HS, U15 & U13’s half time is 10 minutes.  Blow the horn when 4 minutes remain.
Provide time remaining if asked by coaches or referees.
4. Penalty clock and player penalty management -
If the game is in stop clock mode - penalties times stop/start on the whistle;
If the game is in running clock mode, the penalty starts on the next whistle and runs until the penalty is served.  Penalties under a run clock stop if there is a time out called or an injury.
Penalty types – Releasable and non-releasable. If a non-releasable penalty the official will raise hands over his/her head, touching palms and say “Non-releasable” otherwise the penalty is “releasable.”
Penalty times are 30 seconds, 1 minute, 2 minutes and 3 minutes depending on the type of penalty.
Players with a penalty are to stay in the box until the end of the penalty.  They should be on one knee but can stand for the last 10 seconds.  A player substituting for them can stand along side of them for the last 10 seconds and be released after the penalty expires. For penalties call “Release” at the end of the penalty.  If the player leaves before the time ends and the time keeper calls “release,” double tap the horn so the officials stop the game and assess an additional penalty to the player.
The end of the penalty can transpire two ways - the full time of the penalty is served or if it is a releasable penalty and a goal is scored by the opposition (referee will blow the whistle when the goal is scored and players serving releasable penalties are free to return to play).
If there is a penalty being served at the time of a face off the player can not be released until possession is called by the referee unless the wing position is open.  
At the end of regulation periods.
If a coach calls for a horn when the ball goes out on the sideline (not end line).
If the wrong player or a player exits before the penalty is served.