Align timestamps across regions
Search and select the source time zone by city, country or IANA name, then add target zones with the same picker. Beijing finds Asia/Shanghai; New York finds America/New_York. Remove a target with its × button. Use current time refreshes the date and time in your selected source zone. Results include each zone’s offset and the shared UTC instant.
Named zones and fixed offsets
A named zone includes historical and daylight saving rules. A fixed offset does not. The input is a local wall-clock time without an offset; use the Unix Timestamp Converter when starting from an epoch value.
Frequently asked questions
Why can a local time be ambiguous or missing?
When clocks move back, the same wall-clock time can refer to two different instants. When clocks move forward, some local times do not exist. The default mode reports either case; earlier and later explicitly select an interpretation.
Does this use my current UTC offset for every date?
No. A named IANA zone uses its rules for the entered date. Rules come from the browser’s time-zone database, so historical precision and future legislation depend on that database being current.