Privacy Policy
Last updated: March 2026
Data We Collect
Calculator inputs: All calculations on WakeUpTimeCalculator.com (bedtime, wake time, sleep hours) are performed entirely in your browser using JavaScript. We do not transmit or store any time inputs you enter into our calculators on our servers.
Analytics: We may use Google Analytics 4 (GA4) to collect anonymous usage data such as page views, session duration, and device type to improve our service. This data does not include personally identifiable information. You can opt out via your browser's Do Not Track setting or a browser extension.
Cookies
We may use cookies for analytics purposes (Google Analytics). We do not use cookies to track personally identifiable information. You can disable cookies in your browser settings at any time without affecting the functionality of our calculators.
Third-Party Services
We may use: Google Analytics (anonymous usage analytics), Google AdSense (display advertising — if enabled), and Google Fonts (typography). Each of these services has its own privacy policy. Google's privacy policy is available at policies.google.com.
Your Rights
Under GDPR (EU/UK), CCPA (California), and similar laws, you have the right to access, correct, or delete any personal data we hold about you. Since our calculators do not store personal data, there is typically no personal data to access or delete. For analytics data opt-out, please use Google's opt-out tools.
Contact
For privacy questions, contact us at our contact page.