Arrival Time Calculator
Show the math
What Your Result Means
- Arrival Time (Local): The clock time at your destination when you land, expressed in the destination's time zone. This is the time you'd set a local alarm for.
- Arrival Date: The calendar date at your destination when you arrive. Long eastbound flights often land "tomorrow" because you're flying into the clock.
- Day Indicator: Whether you land on the same calendar day, the next day, or multiple days later. Westbound trans-Pacific flights can even arrive "before" they departed in local time.
- Flight Duration (Total): The total airborne time you entered, shown as hours and minutes.
- Time Zone Difference: How far the destination clock is ahead of or behind the departure clock on your travel date, including daylight saving and half-hour zones such as India (UTC+5:30).
How This Calculator Works
You enter a departure time, date, and city, plus the flight duration and the arrival city. The tool looks up each city's UTC offset for the actual travel date using the IANA time zone database built into your browser, so daylight saving time is applied automatically. It converts your departure to UTC, adds the flight duration, then converts to the arrival city's local time. Day boundaries and the date line fall out of that arithmetic naturally. You can also type an offset directly, such as "UTC+7", if you prefer a fixed zone.
Quick Questions
Do I need to worry about daylight saving time?
Not when you pick a city. New York, for example, is shown as EST (UTC−5) for a January date and EDT (UTC−4) for a July date, and the offset updates if you change the departure date. If you type a fixed offset like "UTC-5" instead, that offset is used as-is.
Why does my westbound flight arrive "before" it departs?
Flying west means you're chasing the sun and gaining hours. A flight leaving Tokyo at 6 PM JST and lasting 10 hours might land in San Francisco at 11 AM the same calendar day because of the 17-hour time difference.
Does this include layover time?
No. Enter only the actual flight duration (wheels-up to wheels-down). For connecting flights, run the calculator once per leg or add total airborne time plus layover time together.
How accurate is this compared to airline schedules?
Airlines add taxi time (typically 15–30 minutes each end) and buffer for ATC routing. This calculator gives you the mathematical arrival; the published schedule may differ by up to an hour.
Sources
- IANA Time Zone Database (authoritative UTC offset and DST transition data)
- Wikipedia — List of UTC Offsets (reference for UTC offsets by region)
Method & review
Estimate only. Results reflect your inputs and standard formulas. Double-check important decisions independently.