Science-based jet lag management

Conquer jet lag
with precision timing

JetShift builds a hyper-personalized circadian adjustment plan from your exact flight, chronotype, age, sleep pattern and caffeine habits. Pick your route on the map or by flight number, plan round trips, and get reminders for light, sleep, caffeine and melatonin timing.

Create Your Plan

Light Timing

Precise windows for seeking bright light or avoiding it to shift your body clock.

Sleep Schedule

Day-by-day sleep window shifts that gradually move your rhythm to the destination.

Caffeine Timing

Optimal windows to drink coffee and a hard cutoff to protect sleep quality.

Melatonin Guide

Low-dose melatonin timing recommendations to reinforce your new schedule.

How it works

  1. 1

    Enter your trip

    Pick cities on the map or type a flight number. Add a return date for round trips, plus your sleep, chronotype, age and caffeine habits.

  2. 2

    Algorithm runs

    We estimate your CBTmin and choose the easier route (advance vs delay) to shift your clock, personalized to you.

  3. 3

    Follow your timeline

    A colour-coded day-by-day timeline shows exactly when to seek light, sleep, cut caffeine and take melatonin — in the right timezone.

  4. 4

    Get reminders

    Enable browser alerts or add the plan to your calendar so every window pings you at the right moment.

Recent Plans

JetShift — circadian science made practical.

Not a substitute for medical advice. Consult a physician before using melatonin.