View live time across the world's timezones, or convert a specific date and time into every zone in your list — all client-side with automatic DST handling.
Example: Compare a meeting in New York and London on its actual date, especially near daylight-saving transitions.
Before you use the result: Offsets depend on the date and the browser’s time-zone database. A local time can be skipped or repeated when daylight saving changes.
It uses your browser's built-in Intl API to show live current time in any timezone you add, or to convert a specific date and time from one zone into every other zone in your saved list, automatically accounting for daylight saving time.
No. Everything runs entirely client-side using the browser's native Intl.DateTimeFormat API. Your saved zone list is stored only in your browser's local storage.
Yes. Because it relies on the browser's IANA timezone database via Intl, offsets and daylight saving transitions are calculated correctly for any date.
Yes. The add-zone search matches city names, regions, and common abbreviations against the full IANA timezone list.
Yes. Drag a zone card to reorder it, or use the up/down and remove buttons. Your list is saved automatically.
The tool shows a handful of suggested zones (including your detected local timezone, UTC, and major hubs) so it's useful immediately.