Time Zone Converter
Convert a date and time from one time zone to many at once, with UTC offsets and day-change badges.
Processed locally in your browser — nothing is uploaded.
Pick a date and time to convert.
About Time Zone Converter
Pick a date, a time, and a source zone, then add as many target zones as you need — the table shows each zone's local time, its current UTC offset, and a +1d/−1d badge when the calendar date differs from the source. Conversions use your browser's own IANA time zone database, so daylight saving transitions are handled correctly for the specific date you pick.
Common uses
- Schedule a meeting across offices without off-by-one-day mistakes
- Check what time a launch or broadcast happens where you live
- See which side of a DST switch a future date falls on
Example
Input
Jan 15, 12:00 in New York
Output
Tokyo 02:00 +1d (UTC+09:00) · London 17:00 (UTC+00:00)