How conversion works

We convert the source time to UTC by subtracting the source offset, then add the destination offset. Examples: New York standard time = UTC −5; Tokyo = UTC +9.

Frequently Asked Questions

Is the Time Zone Difference free to use?

Yes, the Time Zone Difference is 100% free to use. There are no subscriptions, no sign-ups, and no hidden fees.

Is my data safe when using the Time Zone Difference?

Absolutely. All calculations performed by the Time Zone Difference happen locally in your web browser. We do not store, track, or transmit your inputs or results to any server.

How accurate is the Time Zone Difference?

Our Time Zone Difference uses industry-standard formulas and methodology. You can view the exact formula and calculation logic used in the methodology section above to verify the math yourself.

Can I use the Time Zone Difference on my mobile phone?

Yes! The Time Zone Difference is fully responsive and works seamlessly on all devices including smartphones, tablets, and desktop computers.