Time Zone Difference Calculator
Compare the current time, date, and offset between any two time zones.
Last updated
—Zone A
—Zone B
—Difference
About this tool
Offsets are computed for the exact moment you pick — not a fixed year-round number — because many time zones observe daylight saving on their own schedule, and the gap between two zones can shift by an hour or more depending on the date. The zone list comes straight from your browser's built-in IANA time zone database, so it stays current without needing updates from us.
Nothing entered here is sent to a server — the entire calculation runs as JavaScript in your browser tab.