Circuit Timer — 40/20
8 stations · 40s work / 20s transition. Runs in the browser with color-coded phases and beeps; the screen stays on. Free, no sign-up.
Get Ready
0:10
Next: Work · 0:40
8:10 left
Palette
Space start / pause R reset M mute F fullscreen
How it works
Forty seconds per station with twenty to reset — eight stations of steady, hard work.
- 40 seconds at each station
- 20 seconds to move to the next
- 8 stations
- Lay out your stations first, then let the timer drive the rotation
Work
40s
Switch
20s
Stations
8
Total
8m
Guide: How many rounds of HIIT? Work-to-rest ratios and rounds
Pulse for iPhone and Apple Watch
The same kind of timer as an app. Free download; Pulse Pro is $3.99 once. No subscription, no ads.
168 palettes8 free, all 168 with Pro.
Apple WatchSaved interval timers run on the watch, with a haptic at each transition.
Live ActivityThe countdown shows on the Lock Screen and in the Dynamic Island.
Saved timers3 free, unlimited with Pro. Flow sessions, labels and history.
Related timers
Circuit Timer — 60/15
12 stations · 60s work / 15s transition
Circuit Timer — 50/10
10 stations · 50s work / 10s transition
Circuit Timer — 30/15
12 stations · 30s work / 15s transition
Circuit Timer
10 stations · 45s work / 15s transition
Circuit Timer — 30/30
10 stations · 30s work / 30s transition
Tabata Timer
8 rounds · 20s work / 10s rest · 4 min