Privacy

Effective date: November 4, 2026

Browser calculations and localStorage

Free calculators run in your browser without an account. Time card drafts and preferences are saved in versioned localStorage on this device, so a shared browser can expose those entries to other users. Clear a card with the calculator controls or remove this site’s storage in your browser settings. Browser storage persists until removed; clearing it can erase drafts. Calculation entries are not sent to our server by the free calculator.

Hosting and technical data

The hosting provider may process IP addresses, request URLs, timestamps and technical request data to serve the site and protect it from abuse. Avoid entering private information in URLs. Cloudflare Web Analytics measures site usage and performance without cookies.

Advertising when enabled

Advertising is off by default. If enabled by the operator, Google AdSense loads a third-party script and may use cookies or similar identifiers to deliver and measure advertising, including personalization where permitted. Google and advertising partners may process IP addresses, device data and browsing activity. You can manage cookies in browser settings and advertising preferences at Google My Ad Center. The operator must configure required regional consent controls before activating ads; this skeleton does not include a consent platform.

Retention, requests and contact

Browser drafts remain until you delete them. Contact us to request access, correction or deletion of information associated with your email. Do not email sensitive employee records.

Google advertising privacy · Google My Ad Center

Contact: luckyliangfei@gmail.com