Privacy

DeadlineDays does not require user accounts or login for calculator use.

Calculator inputs are intended to be processed in the browser. Holiday lookup utilities may cache public holiday data in localStorage, but calculator inputs are not stored on a server.

Future calculator pages may use localStorage only in Client Components for preferences or public holiday cache data.

DeadlineDays may use localStorage in Client Components for recent calculators, favorites, public holiday API cache data, and shareable calculator settings. Browser storage can be cleared from your browser settings.

Some calculators can request public holiday data from an external holiday API. Advertising may be served through Google AdSense when enabled. Google and other third-party vendors may use cookies or similar technologies to serve and measure ads. Users can manage personalized advertising settings or opt out through Google and browser-provided controls.

DeadlineDays does not operate a user account system or a calculator-input database. If a calculator needs public holiday data, it requests country and year information rather than personal identifying information.

The core calculator app does not require essential cookies. If advertising or analytics is enabled later, third-party cookies or similar technologies may be used. Google and other third-party vendors may use cookies to serve ads, and Google advertising cookies may help serve ads based on prior visits. Users can manage personalized ad settings or opt out through the controls offered by Google and their browser.

If personalized advertising is offered to users in the EEA, UK, or Switzerland, a Google-certified consent management platform may be required. Analytics should be treated as active only when the public analytics environment setting is configured. Last updated: 2026-05-14. For privacy questions, use the contact details provided by the site owner when available.