About TimeConvertor.net

TimeConvertor.net is a collection of focused time tools — live city clocks, a time zone converter, a meeting planner, and Unix timestamp utilities — that run entirely in your browser. It is published by Sumvia, the team behind the Sumvia.net calculator network.

Built on the IANA time zone database

Every time shown here comes from the browser's built-in IANA time zone database — the same authority operating systems, programming languages, and servers rely on. We never hard-code an offset or a daylight-saving rule, so when a jurisdiction changes its clocks, the site follows automatically with the browser's own updates.

Honest about accuracy

Live clocks read your device's clock; if your device is synchronized (virtually all phones and computers are, via NTP), the display is accurate to well under a second. We do not claim atomic synchronization, because we do not measure your device's drift — an honesty note you'll find repeated on the methodology page.

Browser-native, no accounts

Nothing you enter — meeting dates, cities, timestamps — is transmitted, logged, or stored. All computation happens on your device, there is no registration, and the tools stay usable on a flaky connection once the page has loaded. This is a deliberate design constraint of every Sumvia site.

Tested logic

The time engine is implemented as small, typed functions with automated tests covering DST in both hemispheres, half-hour and 45-minute zones, the nonexistent and ambiguous wall times around DST transitions, and Unix timestamp round-trips. The worked examples in page copy are generated by the same code that powers the tools, so the documentation cannot drift from the implementation.

Get in touch

Found a problem, or want a city added? See the contact page — reports of suspected conversion issues are especially welcome and are treated seriously.