Set Timer for 20 Minutes

Why Set a Timer for 20 Minutes?

Twenty minutes is the maximum recommended duration for a power nap — sleeping longer than 20 minutes risks entering slow-wave sleep, which causes sleep inertia (that groggy, disoriented feeling upon waking). It is also the standard duration for Transcendental Meditation (TM) sessions and a common rice cooking time for white rice on the stovetop. The 20-20-20 rule for eye strain suggests that every 20 minutes of screen time, you should look at something 20 feet away for 20 seconds. A 20-minute walk after meals has been shown to improve blood sugar regulation.

Best Uses for a 20 Minutes Timer

• Power naps (maximum before sleep inertia)
• Transcendental Meditation sessions
• White rice cooking (stovetop method)
• Post-meal walking for blood sugar
• Focused deep work micro-sessions
• Yoga or Pilates short routines

How This Timer Works

Click Start and the countdown begins from 20 minutes to zero. A circular progress ring shrinks as time passes, giving you a visual sense of remaining time without needing to read the numbers. When the timer reaches zero, an audio alert plays to notify you.

You can pause and resume at any time, switch to fullscreen for a distraction-free view, or toggle the sound alert on and off. The keyboard shortcuts Space (start/pause) and R (reset) allow hands-free control.

Everything runs locally in your browser using your device's clock. No account, download, or internet connection is needed after the page loads. You can switch to other browser tabs and the timer will continue running in the background.