Time Zone Converter
Convert a time to cities around the world, with UTC offsets, daylight saving time and a 24-hour meeting planner.
Times around the world
- Taipei，TaiwanAsia/Taipei—
- Tokyo，JapanAsia/Tokyo—
- London，United KingdomEurope/London—
- New York，United StatesAmerica/New_York—
- Los Angeles，United StatesAmerica/Los_Angeles—
Type a city or country in English or Chinese, or an IANA time zone name.
How to use
- Enter a “Date” and “Time” (24-hour clock), or click “Now”.
- Under “Time zone of this time”, choose where that time is from. It defaults to your device’s time zone.
- Search for a city (in English or Chinese), a country or an IANA time zone, and click “+” to add it. The list is remembered in this browser.
- “Times around the world” shows each city’s local time, date, UTC offset and daylight saving time. The “Meeting planner” highlights working hours everywhere; click an hour in the top row to pick another time.
FAQ
Is daylight saving time handled automatically?
Yes. The tool uses your browser’s built-in IANA time zone database, which applies daylight saving time by date, and marks zones that are on it. New York, for example, is UTC−04:00 in summer and UTC−05:00 in winter.
Why do some times show a warning?
Where daylight saving time is observed, an hour is skipped on the day it starts (02:00–02:59 does not exist on that day in New York) and an hour repeats on the day it ends. For a skipped time the tool uses the time after the change; for a repeated time it uses the first occurrence.
What if my city is not listed?
Built-in city names cover common cities. For anywhere else, search for the IANA time zone name, such as Pacific/Chatham or America/Argentina/Cordoba, or for a large city in the same zone.
How are working hours shown?
The meeting planner treats 09:00–18:00 local time as working hours (shaded and bold), 07:00–22:00 as waking hours, and the rest as night (gray). Adjust for local customs and holidays.
Does it work for past dates?
Yes. The time zone database includes historical offsets, so dates decades ago use the offset that applied then; Taiwan, for example, observed daylight saving time in the 1970s.
Is my data uploaded?
No. Everything is converted in your browser, and your city list is only stored in this browser’s localStorage.
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