Developer•Free tool

Epoch Converter – Unix Timestamp to Date & Back

Convert Unix epoch timestamps to human-readable dates and dates to timestamps. Supports seconds and milliseconds, with UTC and local time formats.

No sign-upBrowser-based
DEV

Tool

Enter your values and get results instantly.

HOW

How to Use

  1. 1Paste a Unix timestamp in seconds or milliseconds\n2. See the converted date instantly in multiple formats\n3. Or pick a date to get its epoch timestamp\n4. Copy any result with one click
WIN

Benefits

Supports seconds and milliseconds
Multiple date formats (UTC, local, ISO)
Instant real-time conversion
Copy-to-clipboard on every result
Free, fast and private
FAQ

Frequently Asked Questions

What is a Unix epoch timestamp?

It is the number of seconds (or milliseconds) that have elapsed since January 1, 1970 00:00:00 UTC. It is how most systems and APIs store dates internally.

Seconds or milliseconds — which one do I have?

Millisecond timestamps are much larger (13 digits, e.g. 1750000000000) compared to seconds (10 digits, e.g. 1750000000). This converter detects and handles both.

What is the difference between UTC and local time?

UTC is the standard time used by computers, while local time is adjusted for your timezone. The converter shows both so you can compare directly.

Is my data sent anywhere?

No. All conversions happen instantly in your browser. Nothing is uploaded or stored, so it is safe for work with sensitive data.

Can negative timestamps work?

Yes — timestamps before 1970 are valid negative numbers, and the converter handles them correctly.