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Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates
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About Unix Timestamp Converter
Convert Unix epoch timestamps to human-readable dates and vice versa. Supports seconds and milliseconds. Auto-detects input format.
How It Works
Unix timestamps represent seconds since January 1, 1970 00:00:00 UTC. This tool uses JavaScript's Date object to convert between timestamps and ISO 8601 date strings. Auto-detection determines whether input is a timestamp or a date string.
Step by Step
- 1 Enter a Unix timestamp or a date string
- 2 The tool auto-detects the format, or choose a direction manually
- 3 View the converted result with timezone information
Tips
- Timestamps with 13 digits are in milliseconds; 10 digits are in seconds
- Use 'now' as input to get the current timestamp
- ISO 8601 format (2026-03-08T12:00:00Z) is the most portable date format
Frequently Asked Questions
What is a Unix timestamp?
A Unix timestamp is the number of seconds elapsed since January 1, 1970 00:00:00 UTC, also known as the Unix epoch.
How does auto-detection work?
If the input is a number (all digits), it's treated as a timestamp. Otherwise, it's parsed as a date string.