What does a timekeeper do during a race?

Q: What does a timekeeper do during a race?

Under World Aquatics Rules 2.10 and 2.11: Timekeeper: Sit where the chief timekeeper assigns you and time the swimmer in your assigned lane. Start your watch at the starting signal and stop it when the swimmer completes the race distance. If the chief timekeeper asks, record split times at intermediate distances in races longer than 100m. Promptly after the race, write the time on the lane card, hand it to the chief timekeeper and show your watch if asked. Reset your watch at the referee's short whistles for the next race. Chief timekeeper: Assigns seats and lanes. Without automatic equipment there are two timekeepers per lane plus at least one reserve to step in if a watch fails. Times the winner of each race. Collects the lane cards, inspects watches if necessary, and records the official time for each lane.

Question

Accepted Answer

Under World Aquatics Rules 2.10 and 2.11:

Timekeeper:

Sit where the chief timekeeper assigns you and time the swimmer in your assigned lane.
Start your watch at the starting signal and stop it when the swimmer completes the race distance.
If the chief timekeeper asks, record split times at intermediate distances in races longer than 100m.
Promptly after the race, write the time on the lane card, hand it to the chief timekeeper and show your watch if asked.
Reset your watch at the referee's short whistles for the next race.

Chief timekeeper:

Assigns seats and lanes. Without automatic equipment there are two timekeepers per lane plus at least one reserve to step in if a watch fails.
Times the winner of each race.
Collects the lane cards, inspects watches if necessary, and records the official time for each lane.