Time Zone Meeting Planner

See a meeting time in multiple cities.

How this calculator works

Given a time in a base timezone and a list of other timezones, shows the local time in each — including day-of-week for cross-date meetings.

Uses IANA timezone data with correct DST handling.

Cross-date meetings are the trickiest part to plan manually — a 9am call on the US East Coast can already be the next calendar day in parts of Asia, which is easy to miscalculate by hand but handled automatically here.

Example

10:00 in New York converts automatically to each timezone you add — for example, roughly 15:00 in London, 23:00 in Tokyo, and 00:00 the next day in Sydney, depending on current DST status in each region.

Frequently asked questions

Does it show day-of-week?

Yes — cross-date meetings (e.g. late US → early Asia) are clearly labeled.

Can I add many timezones?

Enter them comma-separated as IANA names — no strict limit.

Why does the same meeting time shift by an hour some weeks?

Because different countries switch to and from daylight saving on different dates, the offset between two timezones can temporarily change for a few weeks each spring and fall.

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