Privacy

CalendarIQ has no accounts and no database of visitors. Dates, week numbers, holidays and moon phases are calculated in your browser from your device clock.

Saved on your device

To save you retyping, we keep a few things in your browser's local storage, all under keys starting with ciq:: your holiday country, whether weeks start on Sunday or Monday, your saved countdowns, and the last dates used in the date calculator. They never leave your device.

"Ask CalendarIQ" questions

When you use the plain-English question box, the question text and today's date are sent to our server and passed to an AI model through Vercel AI Gateway to turn it into a calculation. We don't store questions, and they are not linked to you. Please don't type personal information into it.

Analytics

We use Ahrefs Web Analytics to count page views. It is cookieless and does not collect personal data.

Hosting

The site is hosted on Vercel, which processes standard server logs (such as IP address) to deliver pages and protect against abuse.