Unix Timestamp Converter
Convert a Unix timestamp to a human-readable date, or a date to a Unix timestamp, in seconds or milliseconds, with UTC, local time, and relative time shown together.
How this tool works
Choose a direction: convert a Unix timestamp into a readable date, or a date and time into a Unix timestamp. For timestamp-to-date, pick whether your number is in seconds or milliseconds, or use "Use current time" to grab right now. The result shows ISO 8601, UTC, your local time, a relative description ("3 days ago"), and both timestamp units at once.
Why this comes up so often
Unix timestamps are how most databases, APIs, and log files store dates internally, since a single number is unambiguous and easy to compare or sort — but it's not something a person can read at a glance. This tool exists for the moment you're staring at a raw timestamp in a log file or API response and need to know what it actually means.
Privacy by design
All conversion happens using your browser's built-in date handling. Nothing you enter is sent anywhere.
This tool runs entirely in your browser. Nothing you enter is uploaded or stored.
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