Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates
Supports both seconds and milliseconds
How to Use
- 1Select conversion direction (timestamp to date or date to timestamp)
- 2Enter a Unix timestamp or a date string
- 3See the converted result with multiple formats
- 4Copy the format you need
What is Unix Time?
Unix time (also called Epoch time or POSIX time) is a system for tracking time as a running total of seconds. It counts the number of seconds that have elapsed since January 1, 1970, at 00:00:00 UTC (the "Unix Epoch").
This timestamp format is used widely in programming and databases because it is timezone-independent and easy to store and compare. Modern systems often use milliseconds instead of seconds for greater precision.
Features
- Live current timestamp display
- Supports seconds and milliseconds
- Multiple output formats (ISO, UTC, local)
- Relative time display
- Natural date input parsing
- Works offline
FAQ
What is the Y2K38 problem?
32-bit systems store Unix timestamps as signed integers, which will overflow on January 19, 2038. Most modern systems use 64-bit integers, solving this problem.
Why does my timestamp have 13 digits?
A 13-digit timestamp is in milliseconds (common in JavaScript), while a 10-digit timestamp is in seconds. This tool automatically detects and handles both formats.
What date formats are supported?
Most standard formats work: ISO 8601 (2024-03-21), RFC 2822 (21 Mar 2024), and natural language (March 21, 2024). The tool uses JavaScript's Date parser.