jetlagwise
Treat a connection as part of the journey
Enter the arrival at the connecting airport and the departure of the next flight separately. A layover can include security, a terminal change and boarding; its full duration is not automatically time available for sleep. Do not replace a multi-leg booking with a fictional direct flight.
An earlier arrival date can be correct
Crossing the Date Line changes the calendar used at the destination. Sydney to Los Angeles can arrive earlier on the local clock on the same date, while the reverse journey can arrive two calendar dates later. Use the booking dates rather than changing them to make the numbers look sequential.
Avoid subtracting clock readings
Departure and arrival clock times belong to different time zones. Subtracting one displayed time from another does not reliably give elapsed travel time. Seasonal clock changes and half-hour offsets add more traps. Let the planner resolve the dated local times after you have checked them against the booking.
Review the complete route before planning
Confirm the order of airports, connection dates and final destination. Include onward flights when you continue after an overnight stop, and add the return when it belongs to the same trip. Then review guidance in the location and time zone shown for each part of the journey.
