Time Zone Meeting Calculator

Convert a meeting time from one time zone to another.

Date

Time

From time zone

To time zone

Converted time

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What this calculator does

This calculator converts a specific date and time from one time zone to another, automatically handling daylight saving time for the date you choose, and flags when the converted time falls on a different calendar day — essential for scheduling meetings or calls across regions.

Worked example

A meeting at 2:00 PM on September 2, 2026 in New York (Eastern Time) falls at 7:00 PM the same day in London, and 3:00 AM the next dayin Tokyo.

Common mistakes

Using a fixed UTC offset instead of a real time zone. Fixed offsets don't account for daylight saving changes, which can shift the correct meeting time by an hour depending on the date.
Missing a day change. A meeting that's "9 AM" your time might already be "tomorrow" for a colleague on the other side of the international date line — always double-check the date, not just the time.
Forgetting that not everyone observes daylight saving time. Some countries and regions don't shift their clocks at all, which briefly changes the time difference between zones twice a year.

Frequently asked questions

Does this account for daylight saving time?+

Yes — it uses your browser's built-in time zone database, which correctly applies daylight saving rules for the specific date you enter, not just a fixed UTC offset.

Why does the converted time sometimes land on a different day?+

Time zones can differ by enough hours that a meeting time in one zone falls on the next or previous calendar day in another — this calculator flags it clearly so you don't accidentally schedule for the wrong day.

How is my time zone detected?+

This calculator reads your device's time zone setting automatically as a starting point. You can change it manually if you're scheduling on behalf of someone in a different zone.

Can I use this for a call between more than two time zones?+

This tool converts between one pair of time zones at a time. For more than two people, convert each additional person's zone separately using the same source time.

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