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Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates in any timezone, with millisecond precision.
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About Unix Timestamp Converter
Unix timestamps count seconds (or milliseconds) since 1970-01-01 00:00:00 UTC. They are the most common way computer systems represent points in time.
This tool converts between timestamps and human-readable dates in any IANA timezone. The current time is shown live and conversions happen instantly in your browser.
Frequently asked questions
What's the difference between seconds and milliseconds?
Plain Unix time is in seconds. Most languages and JavaScript's Date.now() use milliseconds. The tool auto-detects which one you pasted.
What's ISO 8601?
An international standard for date/time strings, e.g. 2025-12-31T23:59:59Z. It is unambiguous and timezone-aware.
Will my timezone be detected?
Yes. Your browser's IANA timezone is selected by default. You can change it from the dropdown.
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