Four minutes is the exact length of a classic Tabata workout and sits inside the usual steeping range for black tea. This page opens a 04:00 countdown; press Start or Space and an alarm plus fullscreen alert marks the end.
What follows is a practical walkthrough of a Tabata set (including how to count the 20-second and 10-second phases without extra equipment), other uses for a four-minute block, and the errors that most often undermine short high-intensity work.
What a Tabata set actually is
The Tabata protocol comes from research led by Izumi Tabata in the 1990s: eight rounds of 20 seconds of very hard effort separated by 10 seconds of rest, which totals exactly four minutes. It is a format, not a specific exercise. Sprints, bike intervals, burpees, jump rope or squats can all be used. Because the effort is meant to be near maximal, a proper warm-up matters and the format is not suitable for everyone. If you are new to exercise or have a health condition, check with a qualified professional first.
How to run a Tabata set with this page
- Warm up for 5 to 10 minutes with easy movement and a few progressively faster efforts.
- Choose one exercise you can perform safely with good form at high effort.
- Open the Stopwatch tab in a second browser tab (press L for laps) or use a wall clock for the 20/10 split, and keep this page on the Timer tab at 04:00 as the master clock.
- Start the 4 minute timer, then work for 20 seconds and rest for 10 seconds, eight times. Each pair of phases takes 30 seconds, so the countdown should read 03:30, 03:00, 02:30 and so on at the end of each rest.
- When the alarm rings, walk slowly for a couple of minutes before you stretch.
The countdown doubles as a checksum: at every 30-second mark you should be starting a new round. If you are off, you have drifted from the protocol and can correct immediately.
Other good uses for four minutes
- Black tea. Many black teas are steeped for around 3 to 5 minutes; four is a middle value to start with. Remove the leaves at the alarm to avoid bitterness.
- One-sprint focus. Pick one tiny deliverable, like writing a paragraph or answering three emails, and work until the alarm.
- Presentation segments. Rehearse a demo or story that has to land in four minutes, a common slot in lightning-talk formats.
- Recovery between sets. After heavy lifts, 3 to 4 minutes of rest is a common choice for strength work.
- Cool-down walk. A four-minute walk after a stressful message can change the tone of your reply.
A four-minute decision guide
| If you want to... | Use four minutes like this | Better alternative if it overruns |
|---|---|---|
| Tabata | 8 x (20 s hard, 10 s rest) | Run two sets with 1 minute rest in between |
| Steep tea | Start at 4:00, adjust by 30 s | Use the 3 minute timer for delicate teas |
| Write a draft | Work until the alarm, no editing | Switch to the 10 minute timer |
| Rest between heavy sets | Sit, hydrate, breathe | Use the 5 minute timer for very heavy work |
Common mistakes and how to avoid them
- Skipping the warm-up. Near-maximal intervals on cold muscles are a common way to get hurt. Warm up properly and stop if something hurts.
- Choosing a complicated exercise. Fatigue ruins form quickly. Pick a movement you can do well while exhausted.
- Misreading the structure as "four minutes of work". The 10-second rests are part of the design. Honour them.
- Letting tea sit past the alarm. Over-steeping makes black tea harsh. Remove the leaves when the timer rings.
- Starting before the music or the exercise is ready. Prepare equipment first, then start the clock.
Frequently asked questions
Is a Tabata workout only four minutes?
A single Tabata set is four minutes of work and rest, but a full session usually includes a warm-up and cool-down, and some people perform multiple sets with rests between them.
How long should I steep black tea?
Commonly around 3 to 5 minutes. Use the instructions for your tea and adjust to taste.
Can I set separate 20-second and 10-second timers?
Use the custom h/m/s boxes for 20 seconds and 10 seconds, or run the Stopwatch alongside this timer and mark laps with L.
Is Tabata safe for everyone?
No. It is very demanding. People with heart, joint or other health concerns should get professional advice before attempting high-intensity intervals.
Conclusion
Four minutes is precise enough to anchor a full Tabata set and flexible enough for tea, rehearsals and short work sprints. Use the 30-second marks as a built-in check, warm up properly, and let the alarm end the effort.
- A Tabata set is 8 rounds of 20 s effort and 10 s rest, totalling four minutes.
- Use the 30-second marks on the countdown to verify you are on pace.
- Warm up first and seek advice if you have health concerns.
- For black tea, begin near four minutes and adjust by 30 seconds.