Zeitfarer Support
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Questions, bug reports, or feature ideas — we read every message. Send us an email directly or fill out the form below.
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What is Zeitfarer?
Zeitfarer is a circadian planning tool engineered for airline pilots and flight crews, grounded in published circadian and melatonin research rather than rules of thumb. It models precisely how your body clock drifts and re-entrains across time zones — weighing the rest break you actually draw in the bunk or seat, not just the itinerary on paper — into one continuous plan for sleep, naps, light exposure, meals, melatonin timing, and exercise that travels with you from the moment you head out the door, through every leg and layover, until you touch back down at home on your own clock.
Your privacy
Zeitfarer collects no data. Everything you enter stays on your device, and the app works entirely offline. Read the full Privacy Policy.
A note on scope
Zeitfarer is a planning aid grounded in circadian science, not medical advice. Treat its plan as a well-reasoned starting point and adjust to how your own body responds.