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Time & Date tool

Meeting Time Planner

Find meeting times that work across several time zones, with every local time and offset shown clearly.

Free · Private · Runs in your browser

Cross-timezone planning

Find the best meeting times

Compare one organizer date across several IANA time zones. The best shared working-hour options appear first.

Time zones

The first zone is the organizer. Use complete names such as America/New_York rather than abbreviations such as EST.

Ranked meeting options and every participant’s local time will appear here.

How options are ranked

Aletheia checks the organizer’s date in 30-minute steps. Options with the most participants inside the selected working-hours window appear first, followed by options closest to noon for the organizer.

Clock changes

Offsets are calculated for the selected date. Organizer-local times that never occurred or occurred twice during a clock change are skipped rather than guessed.

Boundaries

The planner supports dates from 1970 through 2100 using timezone rules installed in the browser. Working hours are a planning preference, not a statement about anyone’s actual availability.

Related tools

Use the Time Zone Converter for one exact conversion or the Time Calculator for fixed durations.

Version

Calculation version 1.0.0. Meeting details remain in the browser and are not included in analytics.

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