Privacy.
The Time Zone Planner calculates in your browser. No account, no saved planner database.
Effective 30 October 2026
Planner settings and shared links
Selected cities, dates, times, and display settings are held in browser memory and, after you interact, in the page URL. We do not use local storage or tracking cookies for the planner. Your browser may retain URLs in its history.
Anyone receiving a shared link can read its settings. Avoid putting confidential information in URLs. Copying a plan uses your browser’s clipboard permission; a manual copy field is available when clipboard access is unavailable.
Hosting and network requests
Loading the site sends standard connection information, such as your IP address, requested URL, and browser headers, to the hosting infrastructure. Hosting providers may maintain operational logs under their own policies. Time zone calculations do not call an external conversion service.
Currency-rate requests
The Currency Converter requests US-dollar-based rate tables directly from exchangerate.dev, or ExchangeRate-API when a daily reference fallback is needed. Those providers receive standard connection information, including your IP address and the site origin. The amount you enter and your selected currency pair are not included in these requests. Calculations and a short-lived rate cache stay in browser memory. Country flags are hosted with this site.
Unit conversions
Unit calculations run in your browser without an external conversion API. Values, units, measurement categories, and display precision are stored in the page URL after interaction. Shared links contain these settings, and your browser may retain them in its history.
Analytics and advertising
Analytics and advertising scripts are disabled in this release. Reserved advertisement areas do not contact an ad provider. If these services are activated, this notice and any necessary consent controls must be updated before activation.
Contact
The contact page provides the currently configured feedback channel. If you contact us by email, your email provider and ours process the message under their respective policies.
Changes
We will update this page when the way the service handles data changes.