Unix Timestamp Converter translates between Unix timestamps and human-readable dates in both directions. Enter a timestamp to see the corresponding date, or enter a date to get its timestamp. A Unix timestamp is the number of seconds (or milliseconds) elapsed since the Unix epoch — midnight UTC on January 1, 1970.
The converter automatically detects whether your input is in seconds or milliseconds and shows the result in multiple formats at once: ISO 8601, UTC, your local time zone, and a relative description like '3 hours ago'.
Key features: seconds and milliseconds auto-detection, ISO 8601 / UTC / local / relative output, two-way conversion, and one-click copy.
Timestamp conversion is a daily need when debugging logs, inspecting API responses, working with database date fields, or setting expiry times for tokens and caches. Many systems store time as Unix timestamps because they're compact and time-zone independent. All conversion runs locally in your browser — nothing you enter is sent to a server.
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