Privacy
This site has no accounts, no sign-ups and no payments. The calculators run entirely in your browser and never send what you type to a server. Nothing you enter is stored, and there is no profile here for it to be attached to.
The calculators
Both calculators do their arithmetic in your browser. The dates and birthday you enter are not transmitted anywhere, not written to storage, and are gone when you close the tab.
The personal day calculator asks for a birth month and day. It does not ask for a birth year, because the calculation does not use one. Collecting a full date of birth for no reason would be worse for you and no better for the result.
What is kept on your device
Two small values are saved in your browser’s local storage: your visit streak, and which version of a call-to-action you were shown so it stays consistent between visits. Both stay on your device, are never sent anywhere, and clearing your browser data removes them.
Working out which day you are on
Midnight happens at different moments around the world, so to show you the right date the site needs a rough idea of where you are. When you open the home page, the network your request arrives on reports an approximate timezone, and you are forwarded to that day’s page.
That check happens in transit and nothing about it is stored. No location, no timezone and no address is written to a database, kept in your browser, or attached to anything else you do here — the site has no account to attach it to. The only lasting effect is which date’s page you land on.
Analytics
No analytics are running on this site at the moment. If that changes, it will be a cookie-free tool that counts page views without building a profile of you or tracking you across other sites.
Either way, no cookie is set for tracking purposes, which is why you have not been asked to dismiss a consent banner.
Affiliate links
Some links go to other companies’ sites and carry a tag showing the visit came from here. Once you follow one, you are on their site under their privacy policy, not this one. Which links those are, and what this site earns, is set out on the disclosure page.
Hosting
Pages are served as static files from a content delivery network. Like any web server, the host records standard request information such as IP address and user agent in order to serve the page and defend against abuse.