20-20-20 rule timer

Every 20 minutes, look at something 20 feet (about 6 meters) away for 20 seconds. This timer rings every 20 minutes and counts the 20 seconds for you.

Every
minutes

Repeating on this page

    Nothing set yet. What you set here rings in this tab.

    Rings while this tab is open and the computer is awake.

    Reminder App for Chrome: reminders that ring with no tab open

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    What the 20-20-20 rule is

    Looking at a screen keeps your eyes focused close up for a long time, and people blink less while they do. The 20-20-20 rule breaks that up: every 20 minutes, look at something 20 feet (about 6 meters) away for 20 seconds. A window, the far end of a room or a corridor all work.

    The American Optometric Association recommends it for digital eye strain, also called computer vision syndrome.

    How this timer helps

    1. Press Start reminding me. It rings every 20 minutes while this tab is open.
    2. When it rings, look away. The window counts down the 20 seconds and chimes softly when they’re up.
    3. Change the interval or the length of the break if you like, and limit it to your working hours.

    Questions and answers

    What is the 20-20-20 rule?

    A habit eye doctors suggest for screen work: every 20 minutes, look at something about 20 feet away for at least 20 seconds. It gives the eye muscles that focus up close a rest.

    Does the 20-20-20 rule cure eye strain?

    It is a way to take regular breaks, not a treatment. If your eyes hurt often or your vision changes, see an eye doctor.

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