Flight Time Calculator
Calculate flight duration from departure and arrival times, including overnight travel and time-zone offsets. Free instant result with no signup.
Your results
Calculation breakdown
- Arrival time
- (Departure hour + Flight hours + Time zone difference) mod 24
Worked example
A flight departing at 22:00 for 9 hours to a destination 3 hours ahead arrives at approximately 10:00 local time, one day later.
Assumptions
- Does not account for daylight saving changes on the travel date.
- Ignores layover time for direct flight calculations — repeat for each connecting leg.
How this calculator works
Enter your departure time, the flight duration and the time zone difference between departure and destination to estimate your local arrival time. This is useful for planning connections, pickups and jet lag recovery.
Calculate elapsed flight time across time zones
Convert the departure and arrival times to a common time zone, then subtract the departure from the arrival. The calculator uses the time-zone offsets you enter and can handle an overnight arrival on the following date.
Local clock times alone can be misleading on international and some domestic journeys. Daylight-saving rules can also change an Australian city's UTC offset depending on the travel date.
Air time is different from total travel time
Scheduled duration may include taxi time but excludes the time spent checking in, clearing security, collecting bags or transferring between flights. Add those periods separately when comparing door-to-door itineraries.
Airlines can change schedules and actual flights can be delayed or rerouted. Use the current itinerary for planning and confirm the final times with the airline before travel.
Frequently asked questions
How do I find the time zone difference?
Compare the UTC offset of your departure and destination cities; many will differ by whole or half hours depending on daylight saving.
Does this account for daylight saving changes mid-flight?
No, enter the time zone difference that applies on your specific travel date, as it can shift during the year.
Can I use this for connecting flights?
Run it once per leg using each flight's own departure time and duration, then add layover time separately.
Editorial review and responsibility
Reviewed by the CalcAussie editorial team on 21 September 2026. Review scope: Method, Australian terminology, material assumptions, source links and user-facing limitations.
Calculator results remain estimates based on the figures entered. Check material decisions against current official information and report a suspected error so it can be reproduced and corrected.