Convert a dated local time between IANA time zones, with explicit handling of daylight-saving gaps and repeated clock times.
Printed from Calxy · https://www.calxy.net/other/time-zone-calculator
YYYY-MM-DD HH:mm, using a 24-hour clock.
Time in America/New York
2026-09-11 02:30:00
Uses the browser’s installed IANA time-zone data. Future rules can change; keep the browser updated and confirm important travel or meeting times. Abbreviations such as CST are avoided because they are ambiguous.
Resolve the entered local calendar time in its IANA time zone.
Convert that exact instant to the destination zone, applying its offset for that date.
Resolve the source wall time to an instant using the zone’s offset on that date, then format that instant in the destination zone. Repeated times require choosing an occurrence; nonexistent times are rejected.
September 11, 2026 at 12:00 in Asia/Kolkata is 06:30 UTC and 02:30 in America/New_York under the installed time-zone rules.
Daylight-saving rules can change the offset across the year. Government changes also affect future dates, so browser time-zone data must be current.
Last updated . Results are estimates for informational purposes only.