Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates.
Timestamp to Date
Date to Timestamp
What Is a Unix Timestamp?
A Unix timestamp (also called epoch time or POSIX time) is the number of seconds that have elapsed since January 1, 1970, at 00:00:00 UTC. It is the standard way computers represent time internally. For example, the timestamp 1700000000 represents November 14, 2023, at 22:13:20 UTC.
How Do I Convert a Unix Timestamp to a Date?
Enter a Unix timestamp in seconds in the input field and the tool instantly shows the corresponding human-readable date and time in UTC and your local timezone. You can also enter a date and time to get its Unix timestamp. Millisecond timestamps are also supported.
When Do Developers Need Timestamp Conversion?
Timestamps appear in API responses, database records, log files, JWT tokens, cookies, and server configurations. Converting them to readable dates is essential for debugging, monitoring, and data analysis. This tool makes the conversion instant without writing code or searching for obscure date libraries.
Does This Tool Handle Millisecond Timestamps?
Yes. The tool automatically detects whether your input is in seconds or milliseconds based on its magnitude. JavaScript timestamps (from Date.now()) are in milliseconds, while most Unix tools and databases use seconds. The tool handles both formats correctly.
What Is the Maximum Unix Timestamp?
The original 32-bit Unix timestamp will overflow on January 19, 2038, at 03:14:07 UTC — known as the Year 2038 problem or Y2K38. Modern systems use 64-bit timestamps, which extend the range to approximately 292 billion years in both directions from the epoch. This tool handles both 32-bit and 64-bit timestamps correctly.
How Do I Get the Current Unix Timestamp?
The tool displays the current Unix timestamp at the top of the page, updating in real time. In code, you can get it with Date.now() / 1000 in JavaScript, time.time() in Python, System.currentTimeMillis() / 1000 in Java, or the date +%s command in Unix shells. The tool is useful for quickly converting these values to human-readable dates when debugging.