Convertisseur de Timestamp Gratuit en Ligne
Convertissez des timestamps Unix en dates lisibles et vice versa.
Frequently Asked Questions
What is a Unix timestamp?
A Unix timestamp is the number of seconds (or milliseconds) elapsed since 00:00:00 UTC on January 1, 1970 (the Unix epoch). It's a universal, timezone-independent way to store moments in time used across all programming languages.
What is the current Unix timestamp?
Open the tool to see the current timestamp in real time — it increments every second. You can also get it in JavaScript with Date.now() (milliseconds) or Math.floor(Date.now()/1000) (seconds).
What is the Unix timestamp for January 1, 2000?
946684800 (seconds). Midnight UTC on 2000-01-01 is 30 years after the Unix epoch. The tool can verify any historical or future timestamp.
What is the Y2K38 problem?
Systems using 32-bit signed integers for Unix timestamps will overflow at 03:14:07 UTC on January 19, 2038 (timestamp 2,147,483,647). This is the modern equivalent of Y2K. 64-bit timestamps won't overflow for ~292 billion years.
Should I store timestamps in seconds or milliseconds?
JavaScript uses milliseconds (Date.now()). Unix shell and most server languages default to seconds. Databases vary — PostgreSQL uses seconds, MongoDB uses milliseconds. The tool converts between both.
Is the Convertisseur de Timestamp free to use?
Yes, the Convertisseur de Timestamp on Allio Tools is completely free with no sign-up or registration required. It works directly in your browser.
How does the Convertisseur de Timestamp work?
Convertissez des timestamps Unix en dates lisibles et vice versa. No data is sent to a server — everything runs locally in your browser for maximum privacy and speed.
Do I need to install anything to use the Convertisseur de Timestamp?
No installation needed. The Convertisseur de Timestamp runs entirely in your web browser on any device — desktop, tablet, or mobile.
Is my data safe when using the Convertisseur de Timestamp?
Completely safe. The Convertisseur de Timestamp processes everything locally in your browser. No input data, results, or usage information is ever transmitted to or stored on any server.
Does the Convertisseur de Timestamp work offline?
After the page loads for the first time, the Convertisseur de Timestamp works without an internet connection for all client-side processing. Tools that fetch live external data (such as DNS or network lookups) require an active connection.
Can I use the Convertisseur de Timestamp output in commercial projects?
Yes. The Convertisseur de Timestamp is a utility tool and its output carries no licensing restrictions. You are free to use results in any project, commercial or personal.
Does the Convertisseur de Timestamp follow official standards?
Yes. The Convertisseur de Timestamp is built to comply with the relevant industry standard or specification for this utility type. If you encounter an unexpected result, verify your input against the specification — edge cases outside the standard may produce undefined behaviour.
Does the Convertisseur de Timestamp work on all browsers?
Yes. The Convertisseur de Timestamp is built with standard browser APIs and works on all modern browsers including Chrome, Firefox, Safari, and Edge — on both desktop and mobile. No plugins, extensions, or third-party software are required.
How do I save or export my results from the Convertisseur de Timestamp?
Select and copy the result text to paste into any document or app. For image tools, a Download button saves the file directly to your device. Your browser's built-in screenshot function also captures results quickly. No account or login is required.