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Unix Timestamp Converter Online

Convert between Unix timestamps and human-readable dates. Free, no signup, works in your browser.

Current Unix timestamp:

Accepts seconds (10 digits) or milliseconds (13 digits)

All conversion happens in your browser. No data is sent to any server.

About Unix Timestamp Converter

This Unix timestamp converter translates epoch timestamps into human-readable date and time formats, and vice versa. It auto-detects whether your input is in seconds (10 digits) or milliseconds (13 digits) and shows the result in UTC, your local timezone, and as a relative time. Use it to debug API timestamps, interpret log entries, or convert dates for database queries.

Frequently Asked Questions

What is a Unix timestamp?
A Unix timestamp (also called epoch time) is the number of seconds that have elapsed since January 1, 1970 00:00:00 UTC. It is the most common time representation in programming and databases.
What is the difference between seconds and milliseconds timestamps?
A Unix timestamp in seconds is typically 10 digits (e.g., 1708387200). In milliseconds it is 13 digits (e.g., 1708387200000). This tool auto-detects the format based on the number of digits.
Can I convert a date to a timestamp?
Yes. Switch to Date → Timestamp mode and enter a date in any common format (ISO 8601, RFC 2822, or natural language like 'Feb 20, 2025'). The tool will return the Unix timestamp in both seconds and milliseconds.

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