Plan One Instant Across Multiple Local Clocks
A useful meeting planner must compare absolute instants, not fixed hour differences. IANA time zones apply historical and future daylight-saving rules, so New York and London can differ by four or five hours depending on the date. This planner resolves a wall time in the first participant's zone, detects skipped or repeated DST times, converts the selected instant for every participant, and ranks slots that remain inside each person's stated working hours.
How to Find a Fair International Meeting Time
- 1Choose an anchor date, meeting duration, and optional manual time interpreted in the first participant's IANA time zone.
- 2Add each participant, select their city-based time zone, and set their actual local working-hour window.
- 3Review any daylight-saving warning and choose the first or second occurrence when a local clock time repeats.
- 4Select a ranked overlap suggestion or keep the manual time, then verify every participant's local date, clock time, and UTC offset.
- 5Copy the UTC instant, download a portable .ics event, or explicitly open a prefilled Google Calendar event.
Meeting Planning Across Time Zones
Schedule a distributed team ceremony
Find a slot inside stated working hours for colleagues in the Americas, Europe, Asia, and Oceania.
Avoid daylight-saving surprises
Plan by calendar date with real IANA rules instead of assuming that two cities always keep the same offset.
Check date rollover
See when one participant joins on the previous or following local day before sending an invitation.
Export an interoperable invitation
Create a UTC-based iCalendar file that calendar clients can render in each attendee's configured local zone.
Frequently asked questions
Why can the same local time occur twice?
When daylight saving time ends, clocks move backward and repeat part of the morning. The two matching wall times represent different UTC instants and offsets, so the planner asks you to select the intended occurrence.
Why can a local time be nonexistent?
When daylight saving time starts, clocks jump forward and skip a range of wall times. A time inside that gap cannot identify a real instant; select a time before or after the transition.
How are the best overlap suggestions ranked?
A candidate must fit completely inside every stated working window. The planner first minimizes the largest distance from any participant's workday midpoint, then uses total distance and earlier time as tie-breakers.
What data leaves the browser?
Time-zone calculations and .ics generation are local. If you click Open Google Calendar, the browser navigates to Google with the event title and UTC start and end times in the URL.