A sit-stand timer for a standing desk, built on the well-known 20-8-2 cycle: twenty minutes sitting, eight minutes standing, two minutes moving — a stretch, a lap to refill your water, a posture reset — then it repeats. A single beep marks each change, and the screen shows whether you are sitting, standing, or moving, so the routine runs itself across the day.
The 20-8-2 ratio comes from ergonomics research on breaking up sitting without standing so long it becomes its own strain; it is a starting point, not a rule. Open the preset in the editor to shift the balance — longer standing blocks, a different move break — or set the rounds to cover however much of your day you want it running.
The half-hour is the interval ergonomics advice points to for breaking up sitting — a beep every 30 minutes, on repeat, to stand, stretch, or rest your eyes. No account, no install.
A one-hour lunch break countdown with a beep when it is up. Set it when you leave; open the editor to change the length.