Who runs these timekeeping drills
Practice for the penalty box and the game clock in ice hockey. An independent developer working alone makes Rinkclock, and no league, association or certification provider is attached to it.
What a drill session looks like
The daily period narrates a period while you run the game clock and the penalty clocks and fill in the sheet, then grades every start, expiry and release from the box. The 11 situations covered are the ones that catch new timekeepers out: coincidental minors, stacked penalties, a power play goal, carry-over into the next period. There are 66 authored scenarios, and everything runs in your browser.
The rulebooks behind it
Two rule sets are modelled separately because they differ on when a penalty ends: the Hockey Canada Playing Rules 2026-2028, and the USA Hockey Official Rules of Ice Hockey 2025-29 with its casebook. Each guide lists the rule sections it draws on and the date they were read, and no rulebook is reproduced or shipped here.
Whose name is on a guide
Only Rinkclock's. No referee, timekeeper or association is credited, and no individual byline appears. The structured data on each guide names the Rinkclock organization as author. Each guide's date moves only when its text changes.
Same developer, other sites
Scorerdesk (the volleyball scoresheet), Icesheet (splitting practice ice between minor hockey teams), Endbook (archery club records) and Placardset (hazardous materials guidebook lookups) are built by the same person. Nothing about hockey rules carries over from them.
What this site cannot do
It cannot certify you. Your league or region still requires its own course, nothing here counts toward it, and on the ice the referee's call stands whatever a drill would have graded. A certificate of practice records the sessions this browser holds, imported ones included.
It models one rule set at a time, may be a season behind, does not know your association's local variations, and will not tell you whether a penalty should have been called. For the reasoning, read how delayed penalties queue and which penalty ends on a goal, or start at the guide hub.
Writing in
If a drill graded you wrongly under your rulebook, say which rule at [email protected]. Record storage is described in the privacy policy, and what is never warranted in the terms.