Timezone Converter

Shows an instant in a selected timezone.

The Timezone Converter takes any date or time you enter and shows that exact instant in a timezone you pick, such as UTC, America/New_York, Europe/Istanbul, or Asia/Tokyo. It parses your input with the browser's native Date handling and formats the result using the IANA timezone you select, making it useful whenever you need to convert a timestamp or check what a given time looks like in another tz.

Common uses

  • Convert a UTC timestamp into local time for a specific city or region
  • Check what time a meeting, deploy, or event falls at across offices in different timezones
  • Verify how a date string is interpreted and rendered in a target timezone during debugging
  • Translate an ISO 8601 timestamp from a log or API response into a readable local time
  • Compare the same instant side by side across UTC, New York, London, Istanbul, Tokyo, and other zones

FAQ

Is my data sent to a server?

No. The conversion runs entirely in your browser using the built-in Date and Intl.DateTimeFormat APIs. Nothing you type is uploaded or stored on a server.

What input formats are supported?

It accepts anything the browser's Date constructor can parse, including ISO 8601 strings like 2026-06-08T14:30:00Z and common date formats. If the input can't be parsed, you'll see an 'Invalid date input' error.

Which timezones can I convert to?

You can select from a fixed list of IANA timezones: UTC, America/New_York, America/Los_Angeles, Europe/London, Europe/Istanbul, Europe/Paris, Asia/Tokyo, Asia/Shanghai, Asia/Kolkata, and Australia/Sydney. The default is Europe/Istanbul.

What does the output look like?

The result is shown in 24-hour YYYY-MM-DD HH:MM:SS format followed by the selected timezone in parentheses, for example 2026-06-08 17:30:00 (Europe/Istanbul).

Does it account for daylight saving time?

Yes. Because it uses IANA timezone names with the browser's Intl.DateTimeFormat, daylight saving offsets are applied automatically based on the date and the selected zone's rules.

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