Free Online Tool

Time Zone Converter

Enter a source date and time, then compare the same moment across multiple cities and time zones.

Quick Presets

Target Time Zones

The result will appear here.

How to Use

  1. Enter the source date and time.
  2. Select the source time zone.
  3. Choose the target time zones.
  4. Check the converted date and time for each city.
  5. Copy the result if needed.

Examples

  • Check what 9:00 AM in Korea is in New York
  • Convert a Los Angeles meeting time to Korea time
  • Convert UTC time to Korea time
  • Compare London and Paris time with Korea time
  • Check an online meeting time across multiple cities

Calculation and Conversion Notes

Time zone conversion works by interpreting the entered date and time as a moment in the selected source time zone, then displaying the same moment in the selected target time zones. Some regions such as the United States and Europe may use daylight saving time depending on the date, so conversion uses IANA time zone names instead of simple fixed offsets. For example, America/New_York may appear as EST or EDT depending on the date. Results may depend on the time zone data and JavaScript Intl API support available in the user's browser.

FAQ

Does this handle daylight saving time?

Yes, for supported time zones, conversion uses IANA time zone data available in the browser, so daylight saving time can be reflected based on the selected date.

What are EST, EDT, PST, and PDT?

Some U.S. time zones switch between standard time and daylight saving time depending on the date. For example, New York may appear as EST or EDT.

Are UTC and GMT the same?

They are often used similarly for general time conversion, but UTC is the more precise international time standard.

What time zone does Korea use?

Korea uses the Asia/Seoul time zone, commonly shown as KST or UTC+9. Korea does not currently use daylight saving time.

Can results differ slightly from other websites?

They should usually match, but display or time zone data differences in the browser may cause slight differences.

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