Travel Time Zone Calculators

Flight Arrival Times Across Time Zones, Jet Lag Recovery Plans and Daylight Saving

Calculators for crossing time zones: the local time you land after a flight of any length, and how many days your body clock needs to catch up with a new zone, with a day-by-day plan.

Every Time Zones and Travel tool

Flight Arrival Time Calculator

Local arrival time for any flight across time zones.

Jet Lag Calculator

How long jet lag lasts and how your body clock shifts each day.

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Meeting Planner

Find a meeting time that works across several time zones.

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Time Difference Calculator

How many hours ahead or behind one city is from another.

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World Clock

Live times for your cities on a day and night world map.

Real zone rules, not fixed offsets

Each city is a named IANA time zone such as Europe/London or America/New_York, and offsets come from the time zone database built into your browser. Daylight saving changes on each side are handled for the actual travel date, so a trip in late March or October still comes out right.

Clock change versus distance

The number that matters for jet lag is how far the local clock moves, not how far you fly. London to Johannesburg is a long flight with almost no clock change, while a short hop across the International Date Line can shift the calendar by a day.