Fasting time counter for timed and open-ended fasts

Set a goal in hours that matches your intermittent fasting window, or run an open-ended counter for longer fasts. Stay at Zero keeps the screen focused on the clock and your next action — start, end, or adjust — without burying you in side features.

Goals are beginner-friendly for IF (intermittent-fasting) and shown as hours — e.g. 16h — not shorthand like 16:8.

• 14h → 14:10
• 16h → 16:8
• 18h → 18:6
• 20h → 20:4
• 36h → longer sessions
• open-ended → open fast

The app dynamically maps your goal to a matching IF-style preset — you don’t have to tap a fixed “18:6” and stay locked to it. Set an end for any moment, or pick the “18h” preset so you can continue shifting it in time in the same continuous action. The full fasting time counter interface supports that without losing simple, clear controls.

History lands on the calendar and in statistics so the fasting time counter is part of a habit view, not a disposable stopwatch. Guest mode works today; account sync* is not required. No nagging paywall modals in daily use.