Basketball · Official Basketball Rules
Law 50: Timer
2 parts · 3 tests · 30 facts · updated 22 October 2026 · markdown
The timer's equipment and markers, when the game clock starts and stops, and how time-outs and intervals are measured.
50.501Duties and Markers
The clock, the signal, the foul and team foul markers.
Test 1The timer's dutiesTake a test
The timer is provided with a game clock and a stopwatch.
Source: FIBA OBR 2026, Art. 50.1 · recall
The timer uses any means possible to notify the officials immediately if the signal fails or is not heard.
Source: FIBA OBR 2026, Art. 50.1 · applied
The timer indicates each player's fouls with the player foul marker, visible to both head coaches.
Source: FIBA OBR 2026, Art. 50.1 · recall
The timer notifies an official immediately when 5 fouls have been charged against a player.
Source: FIBA OBR 2026, Art. 50.1 · recall
Each team foul marker is placed on the scorer's table on the side nearest that team's bench.
Source: FIBA OBR 2026, Art. 50.1 · recall
The timer sounds the signal only when the ball becomes dead and before it becomes live again.
Source: FIBA OBR 2026, Art. 50.1 · recall
The timer's signal neither stops the game clock or the game nor causes the ball to become dead.
Source: FIBA OBR 2026, Art. 50.1 · recall
After the 4th team foul, the marker turns fully red once the ball is live again.
Source: FIBA OBR 2026, Art. 50.1 · applied
The player foul marker shows 5 and an official is notified at once.
Source: FIBA OBR 2026, Art. 50.1, 41.1 · applied
Fully red means four are already in, and play has resumed.
Source: FIBA OBR 2026, Art. 50.1 · applied
50.502Measuring Time
Starting and stopping the clock, time-outs and intervals.
Test 1Starting and stopping the clockTake a test
During a jump ball, the clock starts when the ball is legally tapped by a jumper.
Source: FIBA OBR 2026, Art. 50.2 · recall
During a throw-in, the clock starts when the ball touches or is legally touched by a player on the court.
Source: FIBA OBR 2026, Art. 50.2 · recall
The ring touch does not count; a player's touch does.
Source: FIBA OBR 2026, Art. 50.2 · recall
The timer stops the clock when time expires, if it does not stop automatically.
Source: FIBA OBR 2026, Art. 50.2 · applied
The game clock stops on a goal when it shows 2:00 or less in the 4th quarter and each overtime.
Source: FIBA OBR 2026, Art. 50.2 · applied
The game clock stops when the shot clock signal sounds while a team is in control of the ball.
Source: FIBA OBR 2026, Art. 50.2 · recall
The timer stops the game clock when an official blows the whistle while the ball is live.
Source: FIBA OBR 2026, Art. 50.2 · recall
Passing it in is not enough; a touch on court starts it.
Source: FIBA OBR 2026, Art. 50.2 · applied
In the last 2 minutes the clock stops on a goal and restarts on the throw-in's touch.
Source: FIBA OBR 2026, Art. 50.2 · applied
A goal with 2:00 or less in the 4th stops the clock; an early goal, a tap and the timer's own signal do not.
Source: FIBA OBR 2026, Art. 50.1-50.2 · applied
Test 2Time-outs and intervalsTake a test
The stopwatch starts immediately when the official blows the whistle and gives the time-out signal.
Source: FIBA OBR 2026, Art. 50.3 · recall
The timer sounds the signal when 50 seconds of the time-out have elapsed, and again when it ends.
Source: FIBA OBR 2026, Art. 50.3 · recall
The stopwatch starts immediately when the previous quarter or overtime has ended.
Source: FIBA OBR 2026, Art. 50.4 · recall
The timer notifies the officials when 3 minutes and 1.5 minutes remain before the 1st and 3rd quarters.
Source: FIBA OBR 2026, Art. 50.4 · recall
The timer sounds the signal 30 seconds before the 2nd and 4th quarters and each overtime.
Source: FIBA OBR 2026, Art. 50.4 · recall
The timer sounds the signal and stops the stopwatch at the same moment the interval ends.
Source: FIBA OBR 2026, Art. 50.4 · recall
The timer effects time-outs and notifies the officials of the time-out opportunity once requested.
Source: FIBA OBR 2026, Art. 50.1 · applied
Stopwatch on the whistle; signals at 50 seconds and at the end.
Source: FIBA OBR 2026, Art. 50.3 · applied
Watch on at the end of the quarter, notices at 3 and 1.5 minutes, signal at the end.
Source: FIBA OBR 2026, Art. 50.4 · applied
Fifty seconds in, the first signal warns the teams.
Source: FIBA OBR 2026, Art. 50.3 · applied
Sources
FIBA Official Basketball Rules 2026 (v1.1), Article 50 (paraphrased in original wording; original questions authored from the Rules, not reproduced)
- FIBA OBR 2026, Art. 50.110
- FIBA OBR 2026, Art. 50.29
- FIBA OBR 2026, Art. 50.45
- FIBA OBR 2026, Art. 50.34
- FIBA OBR 2026, Art. 50.1, 41.11
- FIBA OBR 2026, Art. 50.1-50.21