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Developer Utilities · Free online tool

Unix Timestamp Converter

Convert Unix timestamps to dates and ISO-8601 or convert dates to timestamps.

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Ready to use Processes locally in your browser
Date and epoch
No upload is required for these text tools.

How to use Unix Timestamp Converter

Unix timestamps usually count seconds since 1970. This tool accepts seconds or millisecond values, and ISO date input.

  1. Type or paste your input into the editor.
  2. Adjust available options, then choose Convert Timestamp.
  3. Review the result and copy or download it if useful.

Who is this tool for?

Students, developers, designers and anyone who works with developer utilities can use this tool to quickly test concepts without installing a full development environment.

Privacy and safety

Processing for this tool happens inside your browser, and CodingPremise does not receive the text you enter through a server-side processing endpoint. Your browser may still contact our hosting service to load this page. Avoid pasting passwords, private API credentials, or other sensitive information into websites you do not control.