20-20-20 Timer

Every 20 minutes, look at something 20 feet away for 20 seconds. A simple in-browser timer that helps reduce digital eye strain during screen work.

Features a 20-minute work / 20-second rest cycle with a gentle ocean-waves cue, a task list with complete, edit, and delete, and a day-at-a-glance grid of 72 twenty-minute blocks.