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20-20-20 Eye Strain Timer

The 20-20-20 rule protects your eyes from screen strain: every 20 minutes, look at something 20 feet away for 20 seconds. This timer counts down your work time, then guides your 20-second break.

How to use

1. Click Start to begin the 20-minute work countdown.
2. When the break starts, look at something far away for 20 seconds.
3. The timer restarts automatically for your next work session.