Descending Interval Timer
Run intervals that step DOWN each round, like 60-50-40-30-20-10, with a configurable start, step and floor. Full-screen countdown with round dots and a finish fanfare. Works offline.
Built by the AbraCalc team
How to play
- Set your starting interval length, the step-down amount per round, and a floor it should never go below.
- Set an optional rest between rounds, then check the ladder preview to see every round's length at a glance.
- Tap Start to go full screen — each round automatically runs shorter than the last, down to your floor.
- Watch the round dots fill in and listen for the finish fanfare once the floor round is complete.
A descending ladder workout starts with a longer interval and shaves seconds off every round, so the work gets shorter (and usually more intense) as you go — a classic 60-50-40-30-20-10 taper is the textbook example. Set your starting interval length, how many seconds to step down each round, and a floor so the ladder never gets shorter than you can safely handle. The timer builds the full round-by-round ladder automatically, shows you the whole sequence as a preview before you start, then runs it full screen with the current round's duration displayed huge, a step readout, and round dots so you can see exactly how many rungs are left. Every round is separated by a short rest, and the ladder always lands cleanly on your floor value as its final round.
Frequently asked questions
- How is this different from the Pyramid Set Timer?
- A pyramid ramps up and then back down, forming a peak in the middle of the session. Descending Interval Timer only goes one direction — straight down from your start value to your floor — which makes it a pure taper rather than a full up-and-down pyramid, and simpler to set up when all you need is a step-down ladder.
- What happens if my step would take a round below the floor?
- The ladder clamps that round to the floor value instead of going any lower — so a start of 25s with a 10s step and a 10s floor produces 25, 15, 10, not 25, 15, 5. The floor is a hard limit; no round can ever land below it or hit zero.
- Is there rest after the very last (shortest) round?
- No. The session ends the moment the floor-length round finishes — there's no trailing rest tacked on afterward, so the total time in the preview matches exactly what you get when the ladder completes.