Time Zone Meeting Planner
Compare one meeting time across several time zones.
Runs locally in your browser
During a daylight-saving change, some local times are ambiguous or do not exist; confirm critical meetings with attendees.
Discuss a result
Write a short summary and review it before posting. Your tool inputs are never copied automatically.
What is the Time Zone Meeting Planner?
Scheduling across time zones goes wrong more often than people expect. Offsets are not fixed: the United States, the United Kingdom, the European Union and Australia change their clocks on different dates, and some zones, such as India, never change at all. A recurring call that is 6 hours apart in summer can be 5 hours apart for a week or two in spring and autumn. Remote teams, recruiters, students attending overseas classes and anyone booking calls with clients abroad need to convert a specific date, not just a zone name.
This planner takes a meeting date, a local time and an origin zone, and shows the exact matching date and time in a destination zone, including the weekday. It supports ten IANA zones: Chicago, New York, Los Angeles, London, Paris, Dubai, Kolkata, Tokyo, Sydney and UTC. Daylight-saving rules come from your browser's built-in time-zone data, and nothing is sent to a server.
How to use it
- 1Choose a date and time in the starting time zone.
- 2Select the destination time zone.
- 3Confirm the converted time with attendees.
How it works
The browser Intl API formats one instant in multiple IANA time zones, accounting for the daylight saving rules known to the browser.
Example
Compare a 9:00 AM Chicago meeting with New York, London and Tokyo on the chosen date.
Limitations & notes
- Browser time-zone data may change when governments update rules.
- Confirm important meetings with attendees.
Frequently asked questions
Why is the time difference between the US and Europe different for a few weeks a year?
The US moves clocks on the second Sunday in March and the first Sunday in November, while the UK and EU change on the last Sundays of March and October. In 2026 the UK falls back on October 25 and the US on November 1, so for that week 9:00 AM in Chicago is 2:00 PM in London instead of the usual 3:00 PM. Always convert using the actual meeting date.
Why does the result sometimes show a different day?
Large offsets push meetings across midnight. A 6:00 PM Monday call in Los Angeles is already Tuesday morning in Tokyo and Sydney. The planner displays the full weekday and date for the destination zone, so check that line rather than only the clock time, especially when sending calendar invitations that people will accept in their own zone.
What happens if I pick a time that is skipped by a daylight-saving change?
On the night clocks spring forward, a local hour such as 2:30 AM in New York does not exist, and on the night they fall back, an hour occurs twice. The planner resolves these cases to a single instant using your browser's time-zone rules, but the result may not match what a person in that zone expects. Avoid scheduling meetings in those overnight hours, and confirm with attendees if you must.
Which time zones can I compare in this tool?
The planner offers ten zones: America/Chicago, America/New_York, America/Los_Angeles, Europe/London, Europe/Paris, Asia/Dubai, Asia/Kolkata, Asia/Tokyo, Australia/Sydney and UTC. It converts from one origin zone to one destination zone at a time, so to brief a three-city team, change the destination and read each result. If your city shares a zone's rules, such as Berlin with Paris or Toronto with New York, use that zone.
Should I schedule recurring meetings in UTC?
UTC never observes daylight saving, so a meeting fixed at 14:00 UTC stays at the same absolute moment all year. The trade-off is that its local time shifts by an hour for people in zones that change clocks. Many teams instead anchor the meeting to the organizer's local zone. Either way, calendar apps handle recurrence best when the event is created with an explicit time zone rather than a typed-in offset.
No directly related discussion yet.
Start a focused thread and share the question this tool helped you explore.
Ask the community about Time Zone Meeting Planner