Information you provide
You can use the calendars and calculators without registering. If you email oldcalenders@gmail.com, we receive the address and information you choose to send. Do not include sensitive personal information in a correction or contact message.
Technical information
Hostinger hosts this website and may process standard request data such as IP address, browser type, requested URL, timestamp and security signals. This data supports delivery, abuse prevention and troubleshooting. Calculator inputs run in your browser and are not intentionally transmitted to Old Calendars.
Cookies, analytics and advertising
Optional Google Analytics 4 measurement is loaded only after you accept analytics in the site controls. If configured, it collects page paths, browser and device information and approximate location derived by Google from connection data. We do not send calculator inputs, dates of birth, search text or email addresses as analytics events. Theme and analytics preferences are saved in browser storage. You can change your analytics choice using Analytics settings in the footer. When advertising is enabled, the site uses Google AdSense. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites. Google’s use of advertising cookies enables it and its partners to serve ads to you based on your visits to this site and/or other sites on the Internet. You can opt out of personalized advertising by visiting Google Ads Settings, and you can opt out of some third-party vendors’ use of cookies for personalized advertising at aboutads.info. Google explains how it uses information from sites that show its ads.
Your choices and regional rights
Advertising is currently disabled. Before Google advertising is enabled for visitors in the European Economic Area, the United Kingdom or Switzerland, a Google-certified advertising consent platform must be configured. The analytics preference controls on this site are not an advertising consent platform. Residents of US states with privacy laws, such as California, can ask what personal information is collected and request deletion, and can opt out of personalized advertising through the links above. You can also block or delete cookies in your browser settings; the calendars and calculators work without them.
Data sharing and retention
We do not sell personal information. Service providers receive only the information needed to host, secure, measure or monetize the site under their own contractual and legal obligations. Contact messages are retained only as long as needed to answer the request, document a correction or meet legal requirements.
Privacy contact
Naveed Qadir operates Old Calendars at https://oldcalendars.online. For privacy questions, access or deletion requests, email oldcalenders@gmail.com. Rights depend on your location and the information we actually hold. Google explains its processing at Google Privacy Policy.
Children and changes
Old Calendars is a general-audience reference site and is not directed to children under 13. This policy may change as services are added. Material updates will change the date shown below. Last updated: 2026-10-24.