InstantQR
🌐 City and IANA zones • 🕒 Compare offsets • 🔒 Runs locally

Time Zone Converter

Convert times between cities and IANA time zones instantly. Compare UTC offsets, swap locations, use current time, and copy results. Privacy-first: everything runs locally in your browser.

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Pick date, time, and time zones, then click Convert.
Tip: this tool uses official IANA time zones such as America/Phoenix, Europe/London, and Asia/Tokyo.

How this converter works

  • Uses official IANA time zones
  • Calculates local time for the selected date and time
  • Shows each zone's UTC offset at that moment
  • Runs fully in your browser

Related tools

World Clock · Countdown Timer · Unit Converter

FAQ

Is this time zone converter free to use?

Yes. The InstantQR time zone converter is free to use.

Does this tool support IANA time zones?

Yes. The tool supports official IANA time zones such as America/Phoenix, Europe/London, and Asia/Tokyo.

Does the time zone converter store my data?

No. Conversions run locally in your browser and no time data is intentionally stored or sent anywhere.

Can I compare UTC offsets between time zones?

Yes. The tool shows the offset difference and each selected time zone's UTC offset for the chosen time.