Legal
Privacy Policy
DateSpan is a privacy-first tool. All calculations happen in your browser — we don't collect, store, or sell your data.
Last updated: June 2026
No data collection
DateSpan does not collect, store, or transmit any personal information. The dates, times, and settings you enter into any calculator are processed entirely within your browser and are never sent to our servers.
No accounts or sign-ups
DateSpan requires no account, registration, or sign-in. There is no user database, no email list, and no profile data of any kind.
Cookies and local storage
DateSpan may use browser localStorage to remember your preferences (such as selected time zones or custom holiday lists) between sessions. This data is stored only on your device and is never transmitted. We do not use tracking cookies or third-party cookies for advertising purposes.
Third-party services
DateSpan uses Google AdSense to display advertisements. Google may use cookies to serve ads based on your prior visits to this and other websites. You can opt out of personalized advertising by visiting Google's Ads Settings. DateSpan also uses Google Search Console for site verification — no user data is shared with this service.
Contact
If you have questions about this privacy policy, you can reach us through the About page. We do not have a mailing address or phone number to share at this time.
Have a question about privacy?
Visit the About page