Time Zone Converter & Meeting Planner
Plan one dated meeting across IANA time zones rather than treating every city as a fixed UTC offset. Start and end dates are shown separately, including crossings of midnight. Download a UTC-based calendar file after reviewing the local times.
Your result
How the calculation works
Find the UTC instant matching the entered source wall time under browser IANA rules. Convert that instant and instant + duration to each destination zone. Resolve a repeated wall time using the chosen earlier/later occurrence.
Worked example
On 15 October 2026, 09:00 America/New_York corresponds to 13:00 UTC, 14:00 Europe/London and 23:00 Australia/Brisbane. A one-hour meeting ends at midnight in Brisbane.
Assumptions and limitations
Missing spring-forward times are rejected. Repeated fall-back times are explicitly selectable. At most twenty destination zones and a 24-hour duration. Rules use the browser’s installed time-zone data.
Use full IANA names, not ambiguous abbreviations such as CST. Check a future meeting after a jurisdiction announces a time-zone law change; historical second-level offsets are not modeled.
Sources and editorial responsibility
Maintained by Renvoro Pty Ltd. Sources inform the methods and assumptions shown here; outputs have the limitations described on this page.
Method reviewed 2026-10-13. Calculation standards · Report an issue