Privacy Policy
Effective Date: November 9, 2026
1. Core Architecture: Zero Data Retention
At Age & Date Calculator, we believe the most private data is the data that is never collected. When you enter dates of birth or target dates into any calculator on our site, the calculation is computed 100% locally in your web browser using client-side JavaScript.
- Your dates never leave your computer or mobile device.
- Dates are never placed in URLs, web server request logs, or analytics tools.
- Dates are never saved to browser localStorage or cookies.
2. Cookies & Local Storage
We use minimal local browser storage solely to remember functional user preferences:
- Theme: Storing your selection of Light or Dark mode.
- Consent Status: Remembering that you acknowledged our essential cookie notice.
3. Advertising Partners & Third Parties
To maintain this website as a free public utility, we may partner with third-party advertising networks (including Google AdSense). When advertising is active:
- Third-party vendors, including Google, use cookies to serve ads based on prior visits to this website or other websites.
- Google's use of advertising cookies enables it and its partners to serve ads to users based on their visit to our sites and/or other sites on the Internet.
- Users in the European Economic Area (EEA), United Kingdom (UK), Switzerland, and Brazil are presented with a certified Consent Management Platform (CMP) prior to any non-essential cookies or personalized advertising being activated.
- You may opt out of personalized advertising by visiting Google Ads Settings, the Network Advertising Initiative (NAI) opt-out tool, or Your Online Choices (EDAA).
4. Your Rights (GDPR, LGPD, CCPA/CPRA, KVKK)
Depending on your location, you hold statutory rights regarding your personal data. Because we do not collect, process, or store personal identifiers or birthdates, our systems hold zero personal dossiers on visitors. For inquiries or rights requests, contact us at support@yearsdays.info.