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Privacy policy

This policy explains calculator inputs, browser storage, contact messages, hosting data, and advertising. Last updated October 31, 2026.

Calculator inputs and shared URLs

Public calculations run in your browser without an account or a server-side calculation service. Some calculator URLs contain the inputs you enter. Anyone with a copied link can read them. Opening a link sends that URL to the hosting provider, and it can appear in logs, browser history, and third-party page measurements. Do not enter personal identifiers or sensitive details into shareable fields.

Browser storage

The time calculator saves shifts, pay settings, and selected time zones in this browser when local storage is available. Clearing this site's browser data removes those settings. Anyone using the same browser profile may be able to see them. Export a copy if you need a lasting record.

Hosting and technical requests

The hosting service receives information needed to deliver pages, including IP addresses, request URLs, browser information, and request times. Such information may be kept in service or security logs under the provider's settings. Calculator arithmetic running locally does not mean that visiting the site sends no network requests.

Fonts and optional analytics

Pages request fonts from Google Fonts, which receives standard request information such as your IP address. See Google's privacy policy. Analytics is disabled in the default site configuration. If enabled by the operator, Google Analytics can collect usage and technical information and use cookies subject to applicable consent choices. The configured analytics page location excludes calculator query parameters.

Advertising and cookies

The project intends to fund free tools through advertising. Advertising is disabled in the default configuration. When Google ads are enabled, third-party vendors, including Google, may use cookies or similar identifiers to select and measure ads based on visits to this and other sites. Google and its partners may use advertising cookies to personalize advertising. See how Google uses information from partner sites and Google's advertising policy information.

Advertising choices

You can manage personalized advertising through Google My Ad Center and participating vendors through AboutAds choices. These choices do not necessarily remove advertising. Where a consent message is displayed, use it to accept, decline, or change the available choices. Browser settings also allow you to manage cookies and clear site data; doing so can remove saved calculator settings. Other vendors, if introduced, must be disclosed here before their services are enabled.

Contact messages and privacy requests

The contact form opens your email application. No message is sent until you send it. Your email provider and the recipient's provider then process the message. The operator receives the information you choose to include to respond to your request. For questions about privacy, saved correspondence, access, or deletion, use Contact or write to hello@thecalculab.com. Do not include passwords, account numbers, or other sensitive information.

Changes to this policy

This page should be updated when the operator changes hosting, analytics, advertising vendors, or data practices. The date above identifies this version.