Terms of Use

What this site provides

Universal Week Number is a free, browser-based tool that shows the calendar week number of a date, the dates of a week number and the number of weeks in a year. It requires no account, charges no fee, and processes everything locally in your browser.

Acceptable use

You may use this tool freely for personal or professional purposes. You agree not to use it for illegal, fraudulent or deceptive purposes, or in ways that infringe the rights of others. Results are provided for convenience; you are solely responsible for checking that a result matches the numbering rule of the contract, employer, school or authority you are dealing with, since week numbers are defined differently in different systems.

No warranties

This site and tool are provided “as is” without warranty of any kind, express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, or non-infringement. The operator does not warrant that the service will be uninterrupted, error-free, or free of security vulnerabilities.

Limitation of liability

To the maximum extent permitted by applicable law, the operator shall not be liable for any direct, indirect, incidental, special, or consequential damages arising out of or relating to your use of this tool or any calculation made with it. The tool is a utility for convenience; it does not replace an official calendar, legal advice or professional advice.

Your dates and results

The dates you enter and the results you calculate belong to you. This site does not collect, store or claim any rights in them.

Advertising

This site displays advertisements delivered by third-party advertising networks. We do not create or select individual ads and are not responsible for their content or for the websites they link to. If you notice an inappropriate ad, please let us know via the contact page.

Changes

These terms may be updated at any time. The date at the top of this page reflects the most recent revision. Continued use of the site after any changes constitutes acceptance of the revised terms.

Governing law

These terms are governed by the laws of Germany. Any disputes shall be subject to the exclusive jurisdiction of the courts in Germany, to the extent permitted by applicable law.