Unix Timestamp Converter

What is a Unix Timestamp?

A Unix timestamp (also called POSIX time or epoch time) is a system for tracking time as a single number — the count of seconds since January 1, 1970 UTC (the Unix epoch).

It's the standard time format in programming, databases (MySQL, PostgreSQL), APIs (REST, GraphQL), and file systems. Unlike human-readable dates, timestamps are timezone-agnostic and easy to compare mathematically.

Current Unix timestamps are 10-digit numbers (around 1.7 billion). JavaScript uses 13-digit millisecond timestamps.

How to Use This Converter

1. Choose mode: "Timestamp to Date" or "Date to Timestamp"
2. Enter the value (timestamp or date/time)
3. Click "Convert"
4. Get the result in human-readable, Unix timestamp, and ISO 8601 formats