jetlagwise
Earlier and later are different adjustments
For many travelers, moving sleep later is easier than moving it earlier. That helps explain why a moderate westward trip can feel easier than an eastward one. It is a broad tendency, not a guarantee about a particular flight or traveler.
Large clock changes complicate the shortcut
Near a half-day difference, a label such as eastbound does not describe the whole adjustment problem. New York to Tokyo and Singapore to New York both involve large gaps, while their calendar and flight patterns differ. The local-clock difference should not be turned directly into a fixed sleep or light schedule.
Compare journeys with the same inputs
Check the departure city, destination, dates, usual bedtime and wake time. Include connections and the return flight. A morning departure and an overnight departure on the same route are different journeys; advice that ignores this distinction can be difficult to follow.
Use direction to ask better questions
Before leaving, review where the plan places rest and light guidance around your flights. After arrival, read each action in its displayed local time. If you slept differently from the plan, report what happened using the planner’s controls instead of assuming the route direction still tells the whole story.
