What is the 20-20-20 rule?

The 20-20-20 rule is a simple screen break habit: every 20 minutes, look at something about 20 feet away for 20 seconds.

Can I change the 20 minute interval?

Yes. This eye timer includes quick presets plus custom work and rest lengths, so you can use shorter or longer screen break reminders.

Does this timer replace eye care advice?

No. It is only a reminder tool. If you have eye pain, vision changes, headaches, or medical concerns, talk with a qualified eye care professional.

Screen break reminder

20-20-20Eye Timer

Work for 20 minutes, then look at something about 20 feet away for 20 seconds. This simple timer keeps the habit visible while you study, code, write, or work at a screen.

Ready to focus

20:00 Next break: look 20 feet away for 20 seconds.

Customize the reminder

Work minutes Break seconds Repeats

Tip: leave this tab open beside your work. Sound cues help when the tab is not in focus.

How to use the 20-20-20 timer

Choose the classic preset or adjust the work and break lengths.
Press start when you begin screen work.
When the break starts, look across the room or out a window for the full countdown.
Return to work when the timer begins the next focus round.

Why this timer is useful

Screen breaks are easy to forget when you are deep in a task. A dedicated 20-20-20 timer gives you a clear cue to relax your focus, blink, and reset before continuing.

20-20-20 eye timer FAQ

What does 20-20-20 mean?

It means every 20 minutes, look at something around 20 feet away for 20 seconds. The idea is to give your eyes a quick distance-focus break during screen time.

Can students use this timer?

Yes. It works well for homework, online classes, reading, design work, gaming breaks, and any screen-heavy session where reminders are easy to miss.

Should I use sound?

Sound cues are helpful if the timer tab is behind your work. You can turn sound off and rely on the large visual countdown instead.

Is the 20-20-20 rule medical advice?

No. This page is a timing tool, not medical advice. For ongoing discomfort, blurry vision, headaches, or eye health questions, check with an eye care professional.