Time Zone Converter
Convert a time from one time zone to another, with automatic daylight saving handling.
| Zone | Current time |
|---|---|
| Eastern (EST/EDT) | --:--:-- |
| Central (CST/CDT) | --:--:-- |
| Mountain (MST/MDT) | --:--:-- |
| Pacific (PST/PDT) | --:--:-- |
| UTC / GMT | --:--:-- |
| London (GMT/BST) | --:--:-- |
| Central Europe (CET/CEST) | --:--:-- |
| India (IST) | --:--:-- |
| China (CST) | --:--:-- |
| Japan (JST) | --:--:-- |
| Sydney (AEST/AEDT) | --:--:-- |
Convert a date as well as a time
Select the source zone, the destination zone, the calendar date in the source zone and the source time. The result includes the destination date, which may be the previous or following day. The conversion uses named IANA time zones and your browser's time-zone rules. Your device's own zone does not need to match either selected city.
Worked examples
On September 19, 2026, 12:00 in New York converts to 09:00 in Los Angeles. On that same date, 23:30 in Los Angeles converts to 12:00 on September 20 in India. The second example shows why sharing only a time without a date can cause a missed meeting.
Daylight-saving gaps and repeated times
Some local times never occur when clocks move forward. In New York, March 8, 2026 at 02:30 is skipped. This tool reports the gap instead of silently changing your time. When clocks move backward, a local time can occur twice. New York's November 1, 2026 at 01:30 has two possible instants. The occurrence selector lets you choose the first or second; those convert to 05:30 and 06:30 UTC respectively.
Before you send a meeting invitation
- Enter the event date, not today's date unless the event is today.
- Use the city or named zone rather than an abbreviation such as CST, which can have more than one meaning.
- Check the destination date and any repeated-time warning.
- Send a calendar invitation with its time zone attached so attendees can see their own local time.
Swapping the zones keeps the entered date and time and interprets them in the newly selected source zone; it does not preserve the previous event instant. Supported input dates are 1900–2100. Historical and future rules depend on the browser's installed data, so recently announced government changes may require a browser update. Read planning meetings around clock changes.