Privacy Policy

Last Updated: August 20, 2026

1. Zero Calculation Data Collection

At Time Addition Calculator, we respect your confidentiality. All numbers, hours, minutes, seconds, and notes entered into the calculator are processed in real-time within your web browser memory (JavaScript client-side). No calculation data is transmitted to or logged on our servers.

2. Cookies and Local Storage

We do not use invasive tracking cookies or sale-of-data advertising networks. If local storage is used in future updates, it is strictly to save your preferred layout mode (e.g. HH:MM vs HH:MM:SS) locally on your device.

3. Contact Form Data

When you voluntarily submit inquiries via our Contact Form, your name, email address, and message are securely routed to our customer support inbox exclusively to answer your request.

4. GDPR & CCPA Compliance

Because we do not store, process, or sell personal identifiers or financial telemetry, our platform is natively compliant with international privacy standards including GDPR and CCPA.

5. Privacy Inquiries

Questions about this privacy policy may be directed to: support@timeadditioncalculator.com.