Unix timestamp converter

Convert Unix timestamps to readable dates and back, in seconds or milliseconds, for UTC or local time.

Epoch → date

Values under 1,000,000,000,000 are treated as seconds when you paste; larger values use milliseconds.

UTC (ISO 8601)

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Local (UTC)

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Date → epoch

Seconds

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Milliseconds

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All conversions run in your browser — timestamps and dates are not sent to any server.