Calculator inputs
Calculator inputs are processed locally in your browser. The site's own code does not upload those values to TimeCalculator.dev or send them to a calculation service. Changing an input updates the result on the device you are using.
This local-processing statement applies to the values entered into calculator fields. It does not mean that an ordinary page request is invisible to the company that hosts the site; hosting is addressed separately below.
Share links and URL fragments
Some calculators can create a share link that places inputs in the URL fragment, the portion after the # character. Anyone you send that complete link to can see or decode those inputs and can load them into the same calculator. Treat the link as containing the values you entered.
URL fragments are not sent to web servers as part of a normal page request. TimeCalculator.dev therefore does not receive the fragment from the browser. The receiving person's browser reads it locally after the page loads. A messaging service, clipboard manager, screenshot, or person with access to the full link may still see it, so do not place sensitive information in a share link.
Analytics, ads and browser storage
TimeCalculator.dev uses self-hosted Umami analytics on the first-party subdomain a.timecalculator.dev. It records aggregate page views and referrers, sets no cookies, and does not track users across sites. The analytics service never receives calculator inputs: those values stay in your browser and, when included in a share link, in the URL fragment, which is not sent to servers.
The site currently serves no advertising, and its calculator code does not create cookies or localStorage persistence. Closing or reloading a page without a share fragment should not create a saved calculator history through the site's own code. If advertising, persistent browser storage, or another service is added later, this policy will be updated first to identify the service and disclose what it processes.
Hosting-level access logs
Cloudflare Pages serves this site. Standard server access logs may exist at the host when a browser requests a page or asset. Those hosting records and the aggregate Umami analytics described above are separate from calculator-field values and URL fragments.
Questions and changes
Questions about this policy can be sent to [email protected]. If the site's data practices change, the policy text and updated date will change before the new service is introduced.
Effective date: 2026-07-31. Updated: 2026-08-02.