Time tools

Unix Timestamp Studio

Convert Unix seconds or milliseconds to readable dates, and convert local wall time back to Unix time.

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Unix → human date

Unix timestamp

UTC

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Your local time

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Milliseconds

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Current Unix time

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Seconds or milliseconds?

Unix time is commonly stored as seconds since 1970-01-01T00:00:00Z. JavaScript dates use milliseconds internally. This tool validates the numeric value and treats values around 13 digits as milliseconds while preserving explicit results for both forms.