Time Zone Planning Inputs
Plan arrival time accurately by combining departure local date/time, travel duration, and UTC offsets for origin and destination.
Plan arrival local time using departure local time, travel duration, and UTC offsets
Plan arrival time accurately by combining departure local date/time, travel duration, and UTC offsets for origin and destination.
Departure UTC = departure local time - departure UTC offset
Total in-transit hours = flight duration + layover duration
Arrival UTC = departure UTC + total in-transit hours
Arrival local = arrival UTC + destination UTC offset
Time-zone difference = destination UTC offset - departure UTC offset
This planner helps avoid scheduling mistakes when trips cross time zones and calendar days.
It converts your departure local time to UTC, adds in-transit time, and then converts to destination local time.
Depart 2026-06-04 19:30, UTC-5 to UTC+1, 7.5h flight, 0.5h layover
Arrival local: next morning in London, +6 hour time difference
Eastbound overnight flights often feel shorter on the clock but advance local day and hour significantly.
Depart 2026-07-10 12:00, UTC-8 to UTC+9, 11h flight, 1.5h layover
Arrival local: next day in Tokyo, +17 hour time difference
Large positive offset differences almost always require jet-lag buffer in planning.
Depart 2026-08-02 09:00, UTC+1 to UTC-5, 9h flight, 1h layover
Arrival local: same calendar day in New York, -6 hour time difference
Westbound flights can arrive earlier on local clocks even with long in-transit time.
Manual offsets keep the planner simple and transparent, especially when testing what-if routes or historical dates.
No. Enter offsets that already reflect your intended departure and arrival dates, including any daylight saving adjustments.
Yes. Add layover hours so total in-transit time better matches real itinerary timing.
It tells you how destination local date compares to departure local date (same day, next day, previous day, etc.).