Time Zone Converter and World Clock

Plan overseas meetings, remote work handoffs, and travel times with a browser-local time zone converter.

Browser localNo APINo upload

This tool runs in your browser. Selected time zones and entered times are not uploaded to SMARTWAY servers.

Date and time From time zone To time zone

Choose a date, time, and two IANA time zones. The browser Intl API calculates local times, UTC offsets, and day changes.

From time zone - -

To time zone - -

Conversion result - -

World clock

Convert meeting times between Tokyo, UTC, New York, London, Singapore, and other IANA time zones. Runs locally in your browser.

Time zone to add

Does it handle daylight saving time?

Yes. UTC offsets are calculated from the time zone data available in your browser.

Is anything uploaded?

No. Time conversion happens locally in your browser.

Which zones are supported?

The page provides common IANA time zones such as Asia/Tokyo and America/New_York.