Privacy policy
The calculators run in your browser. We keep the data needed for a simple conversion to a minimum.
Last updated: October 11, 2026
Calculator inputs
Time values you enter are processed locally in your browser. The website does not send calculator inputs or results to a server, include them in URLs, or save them in cookies, localStorage, or a calculation history. Refreshing the page clears the form.
When you choose a copy button, the displayed result is written to your device’s clipboard with your browser’s permission. Clipboard content is managed by your device and browser.
Hosting and technical logs
This website is hosted on Cloudflare Pages. When accessing a hosted version, the hosting provider may process your IP address, requested URL, browser information, request time, and other technical information to deliver and secure the website. Browser-local calculation does not mean the hosting provider collects no data.
Cloudflare describes its own processing in its privacy policy.
Cookies, analytics, and advertising
This version does not set application cookies or load advertising, third-party analytics, remote fonts, or social tracking scripts. The hosting provider may use technical measures to secure and deliver the service.
If additional data services are introduced, this policy will be updated to describe their actual use.
Contact by email
If you choose to email the operator, the email address, message, and any information you voluntarily include are used to handle your request. Avoid sending private timesheet records or other sensitive personal information. Your email provider and the recipient’s email provider process email under their own policies.
Questions and updates
Use the contact information on the About page for privacy questions. The date above records the latest policy revision.