← All Tools

🕐 Unix Timestamp Converter

Convert between Unix timestamps and human-readable dates

Current Unix Timestamp

Understanding Unix Timestamps

What is the Unix Epoch?

The Unix epoch is January 1, 1970, 00:00:00 UTC. This arbitrary date was chosen as the starting point for Unix time, and it has become the standard reference point for timestamps across most programming languages and systems.

Seconds vs Milliseconds

Traditional Unix timestamps count seconds, but many modern systems (like JavaScript) use milliseconds for greater precision. To convert between them, multiply seconds by 1000 to get milliseconds, or divide milliseconds by 1000 to get seconds.

Common Use Cases

Unix timestamps are widely used in databases, APIs, log files, and programming. They provide a universal, timezone-independent way to represent time, making them ideal for storing and comparing dates across different systems and locations.

How to Use This Converter

  1. Enter a Unix timestamp in the input field, or click "Use Now" to use the current timestamp
  2. Select whether your timestamp is in seconds or milliseconds from the dropdown
  3. Click "Convert to Date" to see the human-readable date in multiple formats (local time, UTC, and ISO 8601)
  4. To convert in reverse, use the datetime picker to select a date and time
  5. Click "Convert to Timestamp" to get both seconds and milliseconds values, then use the Copy buttons to easily copy the values to your clipboard

Frequently Asked Questions

What is a Unix timestamp?

A Unix timestamp is the number of seconds (or milliseconds) that have elapsed since January 1, 1970, 00:00:00 UTC (the Unix epoch). It's a standard way to represent time in programming.

What's the difference between seconds and milliseconds?

Unix timestamps are traditionally in seconds, but JavaScript and some other systems use milliseconds. Milliseconds provide more precision and are 1000 times larger than the seconds value.

Is this tool free to use?

Yes, this Unix timestamp converter is completely free to use with no registration required.

Does this work on mobile devices?

Yes, this tool is fully responsive and works on all mobile devices, tablets, and desktop computers.

Is my data private?

Yes, all conversions happen entirely in your browser. No data is sent to our servers.