Time Zone Converter
Convert a selected date/time between world time zones and compare live city times at a glance.
Convert Time
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World Clock
Live time updates every second in your browser.
About Time Zone Converter
Time zones can differ by hours and follow different daylight-saving rules. This converter helps schedule meetings and deadlines across global regions by transforming any local time into any other time zone instantly.
How to Use
- Enter the date and time you want to convert.
- Select the From time zone (your local zone or source zone).
- Select the To time zone (the destination zone).
- The converted time appears instantly. Use Add City to compare multiple zones at once.
How It Works
The tool uses the browser's Intl.DateTimeFormat API with IANA time zone identifiers (e.g. America/New_York, Europe/London). These identifiers automatically account for daylight saving time changes throughout the year.
Example
A meeting at 9:00 AM EST (New York) is 2:00 PM GMT (London) and 7:30 PM IST (Mumbai). Add all three cities to see the comparison in one view.
Frequently Asked Questions
Yes. The tool uses IANA time zone identifiers which include all historical and future daylight saving rules. The conversion is accurate for both standard and daylight time periods.
IANA time zones use the format Region/City (e.g. Europe/Paris, America/Los_Angeles). This is more precise than abbreviations like EST or CET, which can be ambiguous or change with DST.
Yes. Enter any past or future date and the tool will apply the correct time zone offset and DST rules for that specific date.
Time zone abbreviations (like CST, IST, BST) are ambiguous — CST can mean Central Standard Time (UTC−6) or China Standard Time (UTC+8). Always use the full IANA name for unambiguous conversion.