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Epoch Converter

Convert Unix timestamps to human-readable dates and vice versa — in seconds or milliseconds.

Current Unix Timestamp (seconds)

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Click to use as input · auto-updates every second

Unix Timestamp → Human Date

Human Date → Unix Timestamp

About Epoch Converter

Epoch Converter is a free, browser-based utility built for developers and engineers who need a fast, reliable way to convert unix timestamps to human-readable dates and vice versa — in seconds or milliseconds. Whether you're debugging an API response, preparing data for deployment, or validating configuration files, this tool handles the job in seconds — with zero server calls. Everything runs locally in your browser, so your source code and data stay private.

How to Use

Enter or paste your input Type or paste your data into the input area. You can also use keyboard shortcuts (Ctrl+V) for quick pasting.

Configure options Adjust any settings or options above the input area to customize the output format and behavior.

Process your data Click the primary action button to process your input. The result appears instantly — no server round-trips.

Review the output Check the output area for your processed result. Any errors or warnings will be displayed clearly.

Copy or download Use the Copy button to copy the result to your clipboard, or download it as a file if that option is available.

🔒 Privacy note: All processing happens locally in your browser. Your data is never sent to any server.

Why Use Epoch Converter?

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Instant Results, Zero Setup No need to install CLI tools, configure environments, or write scripts. Epoch Converter gives you the result instantly in your browser — paste, click, done.

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Your Code Stays Private All processing runs locally using JavaScript. Your source code, API keys, tokens, and configuration data never leave your browser — not even temporarily.

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Part of Your Dev Workflow Bookmark this tool alongside your IDE and terminal. When you need a quick format, encode, or validation, it's one tab away — faster than installing yet another npm package.

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Use It Anywhere Works on any device with a modern browser — laptop, tablet, or phone. Perfect for quick fixes when you're away from your development machine.

Frequently Asked Questions

A Unix timestamp (epoch time) is the number of seconds since January 1, 1970, 00:00:00 UTC (the "Unix epoch"). It's a universal way to represent time across systems and time zones. At the start of 2024, Unix time was approximately 1,704,067,200.

Timestamps in seconds are ~10 digits (e.g., 1700000000). Timestamps in milliseconds are ~13 digits (e.g., 1700000000000). JavaScript's Date.now() returns milliseconds; most Unix system calls use seconds.

32-bit systems store Unix timestamps as signed integers, which overflow on January 19, 2038 at 03:14:07 UTC. Modern 64-bit systems are unaffected. JavaScript uses 64-bit floats, so it can represent dates millions of years into the future.