Also available as native apps:
Privacy Policy
Last updated: October 30, 2025
Overview
Open or Not? ("the Website") is committed to protecting your privacy. This Privacy Policy explains how we handle information in relation to the Website.
Data Collection
We do not collect, store, or transmit any personal data.
The Website:
- Does not require user accounts or login
- Does not collect any personal information
- Does not track user behavior or analytics
- Does not use cookies or tracking technologies
- Does not share any information with third parties
- Does not use any third-party services or APIs
How It Works
The Website calculates NASDAQ market hours entirely in your browser using JavaScript. All calculations are performed locally on your device:
- Your browser's built-in timezone functions are used to determine Eastern Time
- Market hours and holidays are hard-coded into the website
- No data leaves your device
- No server-side processing occurs
Local Storage
The Website does not use browser local storage, cookies, or any form of persistent storage. Each time you visit, the page starts fresh.
Market Data
The Website calculates NASDAQ market hours locally based on publicly available market schedules. No market data is collected, stored, or transmitted. The website does not connect to any APIs or external services.
External Links
The Website may contain links to external platforms (such as trading platforms or app stores). When you click these links, you leave the Website and are subject to those platforms' privacy policies. We are not responsible for the privacy practices of external websites.
Network Access
The Website is a static HTML/CSS/JavaScript application. It does not make any network requests after the initial page load. All functionality works offline once the page is loaded.
Children's Privacy
The Website does not knowingly collect any information from anyone, including children. The Website is suitable for all ages and does not contain any objectionable content.
Changes to This Policy
We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated "Last updated" date.
Open Source
The Website's source code can be reviewed to verify that no data collection occurs. The website is built with standard HTML, CSS, and JavaScript with no tracking libraries or third-party services.
Contact
If you have questions about this Privacy Policy, please contact:
- Email: brandes1@gmail.com
Your Rights
Since we do not collect any personal data, there is no personal information to access, modify, or delete. The website does not store anything about you or your visit.