Interval Timer

Your Custom Interval Timer for HIIT, Tabata, and More

If you’ve ever tried to juggle intervals during a workout—keeping an eye on your phone, fumbling with Timers, guessing whether it’s time to rest or work—you know how distracting it can be. This Interval Timer is built to fix all of that. Whether you’re into Tabata, HIIT, circuit training, or your own custom sessions, this tool keeps you focused on your workout, not your stopwatch.

Choose Your Intervals and Get Going

Set the name and structure of your workout

Start by naming your workout to keep things organized (or leave it as the default). Then, fill in your intervals:

• Work Interval: Set how long you’ll be exercising during each round
• Rest Interval: Choose your recovery time between efforts
• Total Rounds: Define how many times you’ll repeat the cycle

Don’t worry if you’re unsure where to start. Below the inputs, there are quick-select buttons for preset workouts like Tabata (20s/10s × 8), HIIT (45s/15s × 12), and Circuit Training (60s/30s × 6). Hit one of those, and the fields auto-fill with proven formats.

Warm up, cool down, or skip them entirely

If you want a warmup before diving in—or a cooldown to finish—just check the boxes and plug in how long they should be. You’re free to set up your own rhythm from start to finish.

Stay in the Zone With Helpful Cues and Themes

Audio, visual, and even vibration support

This timer isn't just a silent stopwatch. It includes optional voice prompts (“Work”, “Rest”, or countdowns like “3…2…1”) to guide you. There are beeps, voice alerts, round tracking, and if your device supports it, vibration cues too. Want less noise? You can toggle these features individually.

Pick a theme that fits your vibe

Maybe you’re a fan of Fitness Green, or Tabata Red sets the tone. You can choose between four themes—each one gives the timer a distinct look so you’re not staring at the same screen every time.

What You’ll See While You Train

Everything in one place

Once you hit “Start Workout,” the screen shifts into action. You’ll see:

• Your workout name and current phase (like “WORK” or “REST”)
• A big, bold timer counting down
• A live progress bar
• Round tracker (e.g. Round 3 / 8)
• What’s coming up next (e.g. “Next: Rest (10s)”)

It also shows total elapsed time, time remaining, and even gives you a calorie estimate after the session wraps up. All the essentials, no fluff.

Built-in keyboard shortcuts

If you're working from a desktop or laptop, you can control the timer without clicking around. Press Space to start or stop, P to pause/resume, S to skip an interval, R to reset, and F to enter fullscreen.

Answers to Common Questions

What happens if I pause or skip an interval?

Pausing freezes everything in place. When you resume, the timer picks up right where it left off. Skipping an interval moves you directly to the next phase, which is handy if you’re ready to move on early.

Can I see current time while I train?

Yes. There’s a live clock in the corner that you can switch between 12-hour and 24-hour formats. That way, you can keep track of your day even while in the middle of a session.

What if I don’t want to use the voice or beep alerts?

Just uncheck them. You’re in control of every feature. You can run the timer silently, or enable only what helps keep you on track.

Make Every Second Count, No Matter the Workout

Whether you’re squeezing in a fast Tabata set before work or grinding through a long HIIT session, this Interval Timer takes the stress out of pacing. No guesswork, no mental math, just a smooth workout experience from warmup to cooldown. You bring the effort—this tool handles the timing.