Man performing mountain climbers
Timer Templates

HIITTimer

Alternate hard work bursts with short recovery. Tune the work-to-rest ratio and round count to your session.

Timer Structure

What a HIIT TimerLooks Like

3 sets, 0:40 work / 0:20 break. Optionally, include warm-up and cool-down intervals, or start with an additional low intensity interval.

High Intensity
Warm Up
Woman holding an iPhone running Seconds Interval Timer
Mobile App

SecondsInterval Timer

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

Get The App