Destimulate yourself.
Radial Timers is a free timer site built on one idea: while a timer is running, the screen should hold less, not more. The dial is twenty concentric rings, each owning an equal slice of the countdown, emptying clockwise from the outside in. A glance tells you how far along you are without reading a digit, and when time runs out the site keeps chiming until you acknowledge it, like a kitchen timer.
Run as many timers as you like, click a dial to take it fullscreen, export any timer as a video. Signing in with Google is optional: it syncs your daily totals across devices and puts you on a small leaderboard of fellow sign-ins. Everything else works without an account, and the privacy page lists exactly what is stored.
Built and run by one person. Questions and bug reports: contact.