Unix Timestamp Converter

Convert Unix timestamps to human-readable dates or convert dates back to Unix epoch time. Supports seconds and milliseconds.

Epoch to Date

Local Time
12/10/2026, 1:40:25 pm
UTC Time
Mon, 12 Oct 2026 08:10:25 GMT
ISO 8601
2026-10-12T08:10:25.000Z
0 seconds ago

Date to Epoch

Unix Timestamp
1791772800
800

What is Unix Time?

Unix time (also known as Epoch time) is a system for describing a point in time. It is the number of seconds that have elapsed since the Unix epoch, minus leap seconds; the Unix epoch is 00:00:00 UTC on 1 January 1970.

Seconds vs Milliseconds

Historically, Unix time was measured in seconds. However, most modern programming environments (like JavaScript/Java) use milliseconds for higher precision. This tool automatically detects both formats.

Y2K38 Problem

The 2038 problem occurs because 32-bit Unix timestamps will overflow on January 19, 2038. This tool uses 64-bit precision to ensure dates far into the future are handled correctly.