Pace clocks let swimmers leave the wall on a set interval without anyone calling times. Two second hands travel half a minute apart, so a swimmer can leave when a hand reaches a number — say, on the 60 for a 30-second send-off, or when the other hand passes it for a 1:00 interval — and check their own time on every length.
The numbers on this dial are large and spaced every five seconds, with four coloured markers at 12, 3, 6 and 9 for quarter-minute reference points. A small minute counter in the centre keeps track of the set. Use it on a tablet or a pool-deck display in full screen; the Swim pace clock page adds interval beeps.
Where it's useful
- Interval training in the pool, on a wall display or a deck-side tablet
- Dryland or track intervals on a big sweep dial
- Any workout where you leave on a set second mark
- Coaching sessions where several lanes share one clock
Three ways to use it
- Clock — the time of day in your time zone or any city, in 12- or 24-hour form.
- Stopwatch — counts up with laps; press Lap while it runs.
- Countdown — counts down from any time you set, sounds at zero, then counts overtime.
Every face runs entirely in your browser, remembers your settings on this device, and can be embedded on your own page.
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Questions
How do I use a swim pace clock?
Pick an interval such as 1:30. Everyone leaves on the same mark each time; your rest is whatever is left of the interval after you finish the swim.
Why are there two second hands?
Two hands 30 seconds apart give two reference points a minute, so swimmers on 30-second send-offs always have a hand close to the number they are waiting for.
Is there a version with beeps?
Yes — the Swim pace clock page adds a send-off beep at the interval you choose.