Unix Timestamp Converter

Convert Unix timestamps in seconds or milliseconds to human-readable dates and back instantly.

No data stored Instant results Mobile-friendly

Calculator

Status

Idle

Detected Unit

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UTC

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Local Time

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ISO 8601

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Timestamp (ms)

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How it works

Enter a Unix timestamp or choose a date and time. The converter detects seconds vs milliseconds and shows UTC, local, and ISO formats. Results are for informational purposes only.

FAQ

What is epoch time?

Epoch time is the number of seconds (or milliseconds) since January 1, 1970 (UTC).

Is my timestamp in seconds or milliseconds?

10-digit values are usually seconds; 13-digit values are milliseconds.

How do I convert a date to Unix time?

Enter a human-readable date/time and the converter will output the corresponding Unix timestamp.

Is this tool free to use?

Yes. This timestamp converter is free and does not require an account.