Crossing timezones with a strict medication schedule? This tool shows exactly when to take each dose so the gap between doses never opens up dangerously — and so you settle smoothly into the local clock at your destination. Nothing leaves your browser.
If your medication is every 12 hours and you cross 6 timezones in one direction, the planner spreads the 6-hour shift across multiple doses — typically over 2–3 days — instead of telling you to take a dose 6 hours early or late, which could leave a dangerous gap. It chooses the smallest shift per dose that converges on the destination's wall-clock by the end of your trip.
For interval-based medications (insulin, anticoagulants, anti-rejection drugs after transplants, hormonal birth control, antiretrovirals), the gap between doses is what matters — not the wall-clock time. Letting the gap stretch from 12 to 18 hours can drop blood-level efficacy. Cutting it to 6 hours can spike toxicity. The planner targets each dose so the actual gap stays within ±10% of your prescribed interval.
No. This is a scheduling tool. Some medications are tolerant of larger shifts and some are extraordinarily sensitive (e.g., MAO inhibitors, certain seizure medications). For anything safety-critical, run the proposed schedule by your pharmacist or prescriber before you fly. The plan is a starting point — your pharmacist may want to tweak it.
No. The travel planner runs entirely in your browser. There is no server-side component, no analytics, no tracking. Your timezone selections, dose times, and trip dates never leave your device.
Once-daily meds are more forgiving. The planner will suggest shifting the time by ~1 hour per day until you land on the local wall-clock time — which usually takes the same number of days as the timezone difference (e.g., 6 hours = 6 days). If you're at your destination longer than that, you'll have a clean local schedule for most of the trip.