Time Zone Converter
Search 1,000 major cities, check current times, and convert between cities or zones such as UTC and Eastern Time with date-aware daylight-saving rules.
Search a bundled catalog of 1,000 major cities, compare current local times, or convert a specific date and time between cities and named zones such as UTC and Eastern Time.
The selected date matters because UTC offsets can change with daylight-saving rules. Calculations use the time-zone information available in your browser, so recent political changes may depend on your device and browser being up to date.
How to use this tool
- Choose World clock, City to city, or Zone to zone mode.
- Select the source city or time zone and enter the relevant date and local time.
- Choose the destination and review the converted date, time and zone abbreviation.
- Use the swap control to reverse a city-to-city conversion.
Frequently asked questions
Does the converter handle daylight saving time?
Yes. It applies the browser’s time-zone rules for the selected date, including seasonal clock changes when available.
Why must I choose a date?
A city can have different UTC offsets during different parts of the year, so the date is required for an accurate conversion.
Does the world clock need location permission?
No. Times are calculated in the browser and the tool does not request device location.