Timezone Converter
Convert a date & time between any two IANA timezones — fully offline with the browser's native timezone database. See the result in all timezones at once, with DST handling, UTC offset, and 12/24-hour toggles. 100% private.
About Timezone Converter
Convert a date & time between any two IANA timezones — fully offline with the browser's native timezone database. See the result in all timezones at once, with DST handling, UTC offset, and 12/24-hour toggles. 100% private. Everything runs locally in your browser — your data never leaves your device.
How to use
- Enter your input in the tool above.
- Adjust any options to your preference.
- Use the Copy or Download buttons to save the result.
- Everything happens locally — your data never leaves your browser.
FAQ
Does this need internet?
No. It uses the browser's built-in Intl API and IANA timezone database, which is bundled with every modern browser. All conversion happens locally — your data never leaves your device.
Does it handle daylight saving time (DST)?
Yes. Because conversions use the browser's real timezone database, DST transitions are handled automatically and correctly for every region.
What extras does this tool have?
Extras: (1) 400+ IANA timezones; (2) Convert between any two zones; (3) See the moment in ALL zones at once; (4) Automatic DST + UTC offset display; (5) 12/24-hour toggle; (6) Now button; (7) Copy result; (8) Swap zones; (9) Searchable zone list with city names; (10) Date + time together; (11) Meeting-friendly time summary; (12) 100% offline.
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