Unix Timestamp Converter
Convert between Unix timestamps (epoch time) and human-readable dates. Live clock shows current timestamp.
Timestamp → Date
Date → Timestamp
Common Timestamps
Free Unix Timestamp Converter
Convert Unix timestamps (also called epoch time or POSIX time) to human-readable dates and vice versa. Unix time counts the number of seconds since January 1, 1970, 00:00:00 UTC — this is the universal time standard used by all operating systems, databases, and programming languages to represent points in time as simple numbers.
What Is a Unix Timestamp?
A Unix timestamp is a single number representing a moment in time. For example, 1712332800 represents April 5, 2024 at midnight UTC. This format is used because it's compact, timezone-independent, and easy to do math with (adding 86400 seconds always moves forward exactly one day). It's the standard time representation in APIs, databases, log files, and server configurations.
Seconds vs Milliseconds
Traditional Unix timestamps use seconds (10 digits, like 1712332800). JavaScript, Java, and some APIs use milliseconds (13 digits, like 1712332800000). This tool automatically handles both formats — select "Seconds" or "Milliseconds" in the unit dropdown, or the tool will auto-detect based on the number of digits.
Frequently Asked Questions
Many older systems store Unix timestamps as signed 32-bit integers, which can hold a maximum value of 2,147,483,647 — corresponding to January 19, 2038 at 03:14:07 UTC. After this point, the timestamp overflows and wraps to a negative number, potentially causing systems to interpret the date as December 13, 1901. Modern 64-bit systems don't have this limitation.
No. Unix timestamps always represent UTC (Coordinated Universal Time). When converting to a human-readable date, your local timezone is applied for display. The timestamp itself is the same regardless of where in the world you are.