Last updated: November 8, 2026
Information you enter
All calculations happen in your browser. Dates, times and other values you type into our tools are not transmitted to or stored on our servers. Some tools save your last inputs in your browser's local storage for convenience; you can clear this at any time from your browser settings.
Cookies and advertising
We use Google AdSense to show ads. 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 visit to this site and/or other sites on the Internet.
You may opt out of personalized advertising by visiting Google Ads Settings, or opt out of some third-party vendors' use of cookies for personalized advertising at www.aboutads.info. Learn more about how Google uses information from sites that use its services.
Visitors in the European Economic Area, the UK and Switzerland will be asked for consent before personalized ads are shown.
Analytics and logs
Our hosting provider may keep standard server logs (such as IP address, browser type and pages visited) for security and performance. We may use privacy-friendly analytics to understand which tools are popular.
Children
This site is not directed at children under 13, and we do not knowingly collect personal information from them.
Contact
Questions about this policy? Email contact@example.com.