Travel
Time zone calculator
Scheduling across time zones goes wrong in two ways: an hour lost to daylight saving, or a meeting that lands on someone's next day. This converter takes a date and time in one zone and shows exactly when it lands in another, with the precise hour difference and any day shift. It uses each zone's real daylight-saving rules for the date you enter, handles half-hour offsets like India, and covers 19 major zones from Honolulu to Auckland — enough for scheduling calls, flights, and launches.
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Time Zone Calculator
Convert a time between two cities and see the gap and day shift.
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World time clockCheck local times across regions while scheduling or traveling.Paid link · Check current price ↗As an Amazon Associate I earn from qualifying purchases.The math, plainly
How it works
- 01
Your entered time is interpreted in the starting zone, including daylight saving rules for that exact date.
- 02
The instant is then displayed in the destination zone using its own DST rules.
- 03
The difference and day shift are calculated for the specific date, so crossings near a DST change stay correct.
Try a real scenario
2:30 PM New York to Tokyo
InputsAny weekday, 14:30 ET → Asia/Tokyo
ResultAbout 3:30 AM the next day in Tokyo, 13–14 hours ahead depending on DST.
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As an Amazon Associate I earn from qualifying purchases.