Unix Epoch Timestamp to Date Converter

Convert Unix timestamps to human-readable dates and times instantly. Supports any epoch value in seconds or milliseconds with timezone-aware output.

TIME DEBUGGER

Timestamp Converter

> Convert Unix timestamps, ISO 8601 strings, and browser date values locally.
> Switch between seconds and milliseconds, inspect UTC vs local time, and copy stable outputs without guesswork.

Timestamp input

Local processing

Timestamp parsing and formatting happen in your browser. Nothing is uploaded or sent to a server.

Formatted outputs

Detected format, UTC/local views, and copy-ready outputs will appear here.

Date builder

Adjust a parsed local datetime value and convert it back into Unix and ISO formats instantly.

Edit local datetime

Detected input

Relative to now

What Is a Unix Timestamp and How Do You Read It?

A Unix timestamp (also called epoch time) is the number of seconds that have elapsed since January 1, 1970, at 00:00:00 UTC — known as the Unix Epoch. It is the most widely used method for representing time in databases, APIs, log files, and JWT tokens. The value 1700000000 corresponds to November 14, 2023, 22:13:20 UTC. JavaScript and Java often store timestamps in milliseconds (multiply by 1000), while Unix systems, Python, and Go typically use seconds. Our converter automatically detects both formats and displays the result in UTC along with your browser's local timezone.

FAQ

Why does my timestamp have 13 digits instead of 10?

A 10-digit timestamp is in seconds. A 13-digit one is in milliseconds (common in JavaScript's Date.now() and Java System.currentTimeMillis()). Divide by 1000 to convert milliseconds to seconds.

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What Is a Unix Timestamp and How Do You Read It?