Unix Timestamp Converter (epoch β date)
Convert Unix timestamps to human dates (UTC, local, ISO) and back.
π Runs entirely in your browser. Your input and output are never sent to a server or stored β fully private.
About this tool
This converter turns a Unix timestamp (the number of seconds β or milliseconds β since 1 January 1970 UTC) into a readable date and time, and converts a date back into a timestamp. It shows the result in UTC, your local timezone and ISO 8601 format at once, which is ideal for debugging logs, APIs and databases. Everything is computed in your browser using your device clock.
Frequently asked questions
What is a Unix timestamp?
A Unix timestamp is a single number that counts the seconds elapsed since the Unix epoch β midnight UTC on 1 January 1970. Because it has no timezone of its own, it is a compact, unambiguous way for computers to store an instant in time.
Does it handle seconds and milliseconds?
Yes. Ten-digit timestamps are read as seconds and thirteen-digit ones as milliseconds, which covers the formats used by most languages and APIs β JavaScript, for example, works in milliseconds while Unix tools usually use seconds.
Is my data sent anywhere?
No. The conversion is done entirely in your browser, so the timestamps and dates you enter are never sent to a server.