Privacy

What Whendays does with your data, and what the ads do.

Whendays

  • Whendays doesn't log, store, or share the dates, regions, or other values you enter into the calculators. On the calculator pages the URL's query string is stripped before anything is written to the access logs.
  • Your country and region are inferred from your IP address at request time, used only to choose the right holiday calendar, and not stored.
  • Page analytics come from Cloudflare Web Analytics, which measures visits and page performance without cookies and without fingerprinting.
  • Whendays sets no cookies of its own.

Ads

  • Whendays is funded by display ads from Google AdSense.
  • When an ad is shown, AdSense sets cookies to measure and personalize it and reads the page URL, including any parameters in a shared calculator link.
  • Whendays passes no calculation inputs to AdSense beyond what is already in the URL.
  • Manage ad personalization in your Google My Ad Center, and read how Google uses data for advertising.

Last updated: 2 June 2026