
The circuit training timer rotates through multiple exercises with optional breaks. Name each station, set the duration, and let the timer guide you.
3 exercises × 2 rounds, 0:40 work / 0:20 break. The timer flows automatically from start to finish.
Five-station strength circuit hitting legs, push, pull, core, and conditioning. Three rounds at 0:45 work, 0:15 rest.
No equipment needed. Four moves, four fast rounds. Short rests force the pace and keep the heart rate up.
A short, brutal core circuit to bolt onto the end of any session. Three movements, three rounds, minimal rest.
Fixed work/rest intervals, repeated for a set number of rounds.
Back-to-back HIIT blocks — every round of one exercise, then on to the next.
Simple timed rounds with breaks. Boxing, MMA, sparring.
Build any interval sequence from scratch, one by one.
Stack other timers into a multi-block session, cycled as a whole.

The full Seconds experience — on iPhone, Apple Watch, and Android.