Privacy and cookies

Updated: September 27, 2026. This policy explains what information may be processed when you visit calendarin.net and how to contact the site administration.

Contact for data questions

For questions about processing, correcting, or deleting information, email pshevchenko1998@gmail.com. You do not need an account to use the calendar and calculators.

Information processed

When pages are opened, the server and analytics services may receive technical request information such as IP address, date and time, page URL, browser and device type, and referring page. Values entered in calculators are used to produce results. Please do not enter information you need to keep confidential.

Visit analytics

The site uses Yandex Metrica and Google Analytics 4 to understand page use and identify issues. These services may use cookies and similar browser identifiers and receive information about viewed pages and interactions. Their data practices are described in the Yandex privacy policy and Google privacy policy.

Cookies and your controls

Cookies and browser local storage may be used for site functions and visit measurement. You can restrict or delete cookies in your browser settings. This may reset some site preferences. See the Yandex Metrica cookie guide and Google Analytics privacy guide.

Advertising

Yandex Advertising Network autoplacement is enabled on the site. Its ad code may use technical identifiers and ad interactions to display ads, limit repetition, and measure performance. Yandex’s privacy policy also applies to its processing.

Email inquiries

If you email the administration, we receive your sender address and message. We use this information to reply and resolve the issue. Please do not send passwords, identity documents, or other sensitive information unless necessary.

Policy changes

When services or data practices change, this page will be updated with a new publication date.