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Time Zone Converter

Free time zone converter: pick a source and target zone, enter a time, and see the converted time plus 24 major cities with local time and UTC offset.

目标时区时间
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源时区偏移
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目标时区偏移
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时差
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UTC 时间
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城市 / 时区 当地时间 UTC 偏移

How to Use

  1. Pick the source zone

    Choose the zone your time belongs to and enter the exact date and time.

  2. Pick the target zone

    Select where you want to convert to. The result updates instantly and shows both UTC offsets.

  3. Read the world clock

    The table lists local time and offset for 24 cities at that same instant, which makes scheduling across zones easy.

FAQ

How is daylight saving handled?

The tool uses the browser's IANA time zone database and checks whether daylight saving was active on the exact date you enter. New York, for example, switches between UTC−5 and UTC−4.

Why is the time difference not what I expected?

Differences shift with daylight saving: Beijing to New York is 12 hours in summer and 13 hours in winter. The Difference field shows the actual gap for the date you selected.

Which cities are supported?

24 common zones covering mainland China, Hong Kong, Macao and Taiwan of China, Japan and Korea, Southeast Asia, the Middle East, Europe, North and South America, and Oceania. For other cities use a UTC offset.

How accurate is the conversion?

It follows standard IANA rules to the minute. Some regions made unusual historical adjustments, so dates before 1870 may not be exact.

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