Time Zone Converter Privacy: All processing runs locally
Convert time between world time zones. Shows the current time for both selected zones.
Source Time Zone
Target Time Zone
How It Works
The Time Zone Converter uses the browser's built-in Intl.DateTimeFormat API to accurately convert between time zones. This ensures correct handling of Daylight Saving Time (DST) transitions and historical time zone rules.
Features:
- Live clock — shows the current time in both the source and target time zones, updated every second
- Date and time input — enter any date and time to convert, or use the "Use Current Time" button
- DST-aware — automatically accounts for Daylight Saving Time changes
- Swap button — quickly reverse source and target time zones
The tool includes major time zones from all continents. Time zone data comes from the IANA Time Zone Database, which is maintained in your browser's JavaScript engine. All processing happens locally with no data sent to any server.