Privacy Policy

Last updated: September 22, 2026

Xem Thay 24h (xemthay24h.com) respects your privacy. This page explains what information we collect when you use our website and mobile app, how we use it, and the choices available to you.

1. Information We Collect

• Information you provide: your name, email address, phone number and message when you submit our Contact form.
• Data you enter into our tools: the date you convert between solar and lunar calendars, and the birth year you look up. This data is used only to return your result and is not linked to your identity.
• Location: our weather feature estimates your approximate location (city or province level) from your IP address. If you tap the location button and grant permission, your browser sends GPS coordinates so we can show more accurate weather. Coordinates are used only to retrieve weather data and are stored on your own device; we do not keep a location history.
• Technical data: IP address, browser type, device, pages viewed and access time, recorded automatically to operate and protect the service.

2. Cookies and Similar Technologies

Cookies are small files stored in your browser. We use cookies to maintain your session, protect forms against forged submissions, measure traffic and serve advertising. You can delete or block cookies in your browser settings; some features may then not work fully.

3. Google AdSense Advertising

• We use Google AdSense to display advertisements. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites.
• Google's use of advertising cookies enables it and its partners to serve ads to you based on your visit to this site and/or other sites on the Internet.
• You may opt out of personalised advertising by visiting Google Ads Settings, or opt out of third-party vendor cookies at www.aboutads.info.
• Learn more about how Google uses data at How Google uses information from sites that use its services.

4. Analytics

We use Google Analytics to understand how visitors use the website (page views, popular pages, devices) so we can improve our content. Google Analytics uses cookies and reports data in aggregate. You can opt out using the Google Analytics Opt-out Browser Add-on.

5. Third-Party Services

• Weather data: Open-Meteo. Place names: OpenStreetMap Nominatim. IP-based location: ip-api.com. We send only the coordinates or IP address needed to retrieve the data, never information that identifies you.
• Affiliate links: some product links (for example, Shopee) are affiliate links. If you buy through them we may earn a commission at no extra cost to you. The seller is responsible for the transaction.
• Social networks: share buttons open pages on Facebook, X and similar platforms, which apply their own privacy policies.

6. How We Use Information

• To provide and maintain our features: lunar calendar, date conversion, age and destiny lookup, and weather.
• To respond to your enquiries and feedback.
• To analyse and improve our content and user experience.
• To display advertising that keeps the website free to use.
• To detect and prevent abuse, fraud and unusual traffic.

We do not sell your personal information to anyone.

7. Data Retention and Security

Contact details are retained only as long as needed to handle your request. We apply reasonable technical measures to protect your data, though no method of transmission or storage over the Internet is completely secure.

8. Your Rights

You may request access to, correction of, or deletion of the personal information you have sent us, and you may withdraw your consent to its processing, in accordance with Vietnamese personal data protection law. Please send requests through our Contact page.

9. Children

This website is not directed at children under 13 and we do not knowingly collect information from them.

10. Changes to This Policy

We may update this policy from time to time. The latest revision date is always shown at the top of this page. Continued use of the website after a change means you accept the updated policy.

11. Contact Us

If you have any questions about this Privacy Policy, please reach us through our Contact page.