20 Second Timer

A free online 20-second timer. Highly recommended for the 20-20-20 eye strain rule, hand washing, and HIIT workouts.

00:20

Why is a 20-second timer so popular?

Twenty seconds is a magic number in health and fitness. From proper hygiene recommendations to reducing digital eye strain, health professionals frequently recommend this exact duration.

Popular use cases

The 20-20-20 rule: look at something 20 feet away for 20 seconds to reduce eye strain.
Proper hand washing to effectively eliminate germs.
High-Intensity Interval Training (Tabata) rest periods.

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