Time Zone Converter, World Clock, and Meeting Planner
World Clock
Time zone converter and meeting planner
Compare cities on one shared timeline, move a single cursor through the day, and keep the same view in your browser, account, and URL.
Reference time
12:19
Prague, Czechia / May 4
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Prague
Home12:19
Mon, May 4
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New York
06:19
Mon, May 4
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Shared timeline
Drag the bar to move all cities together
12:19
Prague
HomeUTC+2Czechia / GMT+2
12:19
Mon, May 4
Now: 12:19
Previous day
New York
UTC-4United States / EDT
06:19
Mon, May 4
Now: 06:19
Previous day
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Useful links
Time zone converter helps you convert time between cities, compare live clocks, and spot a workable meeting window on one timeline.
Select the cities, choose the date, and the result updates instantly with real DST and date-rollover handling.
FAQs
Why use IANA time zones instead of fixed UTC offsets?
Because the same city can switch offsets by date. A real zone like Europe/Prague or America/New_York is the only reliable way to handle DST and transition days.
What happens on the day DST starts or ends?
The converter keeps one absolute instant and shows a clear note if the chosen local wall time falls into a skipped or repeated hour.
Can I save my city set and settings?
Yes. Guest users keep the view in localStorage, and authenticated users sync the same state to the database.
Can I share the exact same view?
Yes. The URL stores the selected cities, reference zone, date, format, and timeline cursor so the same setup can be restored by link.
What is this most useful for?
It works best for meeting planning, support coverage, distributed team coordination, and any scenario where you need to compare several cities side by side on one day.