Timezone Converter
Real-time comparison and conversion of world timezones. Accurate time difference calculations.
About Timezone Converter
Compare one instant across IANA timezones and export a meeting.
Add or reorder zones, choose a base time and adjust the timeline. Sharing freezes the selected instant, including the slider offset.
Download a titled .ics event with a duration, then import it yourself into a calendar. Export does not create an online event or send invitations.
The calculation or rendering runs in this browser tab. Copy, download and share actions make the chosen output available outside this tab.
Worked example
- Input / settings
- 2026-09-16T12:00:00Z, slider +3 hours, duration 60 minutes
- Action
- Share or export meeting
- Result
- Selected start 15:00Z (Seoul 00:00 the next day); .ics ends at 16:00Z.
Scope and limits
- Up to 100 timezone rows. Work-hour shading uses stored defaults or shared values; the current UI has no work-hour editor.
- Meeting title: 1–1,000 Unicode code points; duration: 1–10,080 whole minutes. UTC event times preserve the instant through daylight-saving changes.
Frequently asked questions
- Will every viewer see the same clock numbers?
- A v2 #tz link preserves the same instant and zones, so those zones agree. Legacy links without an offset use the receiving browser’s local timezone. Links contain the shared settings and are readable by recipients.
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