Make Your Date Universally Understood

For Earthlings who need to share dates with beings beyond our world — convert any human calendar date into the simple, unambiguous Unix timestamp used by computers and possibly the cosmos. No cultural baggage, just epoch seconds.

Open the Tool

Why use Unix Date Bridge?

One-click conversion from any human date format to Unix time.

Works with date-only and date-time ISO 8601 formats.

Eliminates calendar confusion with a universal epoch reference.

Ideal for SETI messages, sci-fi writing, or interplanetary data.

Free, instant, and browser-based — no data sent anywhere.

How it works

  1. Enter a human calendar date in the input box, like 2025-04-13T12:30:00.
  2. Click the 'Convert to Unix Time' button.
  3. Copy the resulting Unix timestamp and share it with any civilization that understands epoch math.

FAQ

What is a Unix timestamp?

It's the number of seconds elapsed since January 1, 1970 UTC, ignoring leap seconds. It offers a simple, culture-free way to represent a moment in time.

Can I include a time zone?

Our converter expects UTC by default. If you use a time offset like 2025-04-13T12:30:00-04:00, the function will account for it automatically.

Why use Unix time for alien communication?

Human calendars rely on planetary motion and historical events. Unix time is a counter — logical and easy for advanced minds or machines to parse.