INTERVAL TIMER8 rounds · 07:40 total
SEC
SEC
ROUND 1 / 8 · WORK
ROUND 1 / 8 · WORK
An interval timer is the tool for anything that repeats: circuits, HIIT, sprint sets, physiotherapy, practice drills, even focused work in short bursts. Set the work length, the rest length and the number of rounds, and it walks through them so you never have to look at the screen to know where you are.
The sound at each change is the point. During a set you are looking at the floor, at a bar, or at your hands, and a countdown you have to watch is a countdown you will lose track of. Each phase change gets the alarm, and the round and phase are always on screen for when you do glance up.
The tip: enter the rest you will actually take. A ratio like twenty seconds on and ten off reads well on paper, but if you then run ten seconds over on every rest, the timer has stopped describing the session you are doing. A ratio you complete as written beats one you round off, and you can see the difference in the bar above the controls, which draws every round to scale.
Your settings live in the address, so a routine you like can be bookmarked or sent to someone: /interval-timer?w=40&r=20&n=8 is forty seconds of work, twenty of rest, eight rounds.
The settings go into the address as you change them, so bookmarking the page saves the routine, and sending that link hands it to someone else, with no account involved.
Yes, at every phase change. It is the same synthesized blip as the countdown alarm and it obeys the sound button beside the controls.
No. A trailing rest is dead time nobody waits out, so the session ends on the last work interval.