Privacy Policy

Introduction

ZHUI (hereinafter referred to as “we”) takes your privacy protection very seriously. This privacy policy explains how we collect, use, store, and protect your personal information when you use ZHUI’s website and tools (hereinafter referred to as “Services”).

By using our Services, you agree to the terms of this Privacy Policy. If you do not agree with this policy, please stop using our Services.

Information We Collect

1. Automatically Collected Information

When you visit our website, we may automatically collect the following technical information:

  • Browser type and version
  • Operating system information
  • IP address (anonymized)
  • Visit time and page browsing history
  • Device type (desktop/mobile)

2. User-Provided Information

When you interact with us through the following methods:

  • Contact form: email address, name (optional), message content
  • Time conversion: timezone queries and conversion operations you perform (processed locally, not uploaded to server)

3. Information We Do Not Collect

  • We do not collect sensitive personal information (ID cards, bank card numbers, etc.)
  • We do not use third-party tracking tools (such as Google Analytics)
  • We do not collect and store users’ time query and conversion records

Use of Information

The information we collect is used only for the following purposes:

  • Service provision: operate and maintain the normal functionality of the website and tools
  • User support: respond to your questions, suggestions, and feedback
  • Security protection: detect and prevent fraud and abuse
  • Service improvement: analyze usage trends to optimize product experience (anonymized statistics)

We promise not to use your personal information for marketing purposes or sell it to third parties.

Local-First Data Processing

Our time conversion tool follows a “local-first” principle:

  • Timezone queries: all timezone queries and conversions are completed locally in your browser
  • Privacy protection: we do not upload, record, or store any of your time query records
  • Offline availability: core functions can continue to be used offline after loading
  • Data security: your query data is only saved in your local browser cache

Information Sharing and Disclosure

We do not sell, rent, or trade your personal information. Information may be disclosed in the following circumstances:

  • Legal requirements: comply with laws and regulations, court orders, or government requirements
  • Rights protection: protect our or users’ legitimate rights, security, and property
  • Service providers: with third parties that assist us in operating our services (such as cloud service providers), but only to the necessary extent

Data Security

We take the following measures to protect your information security:

  • Use HTTPS encrypted transmission to protect data transmission security
  • Strictly restrict employee access to personal information
  • Conduct regular security audits and vulnerability scans
  • Minimize data collection and storage time

Please note that no method of Internet transmission or electronic storage is 100% secure.

Cookies and Tracking Technologies

We use minimal cookies to ensure the website functions properly:

  • Essential cookies: maintain session state and basic functionality
  • Preference cookies: remember your language and theme preference settings

We do not use third-party advertising or analytics cookies. You can manage cookies through your browser settings.

Your Rights

According to applicable privacy laws, you have the following rights regarding your personal information:

  • Right to access: view the personal information we hold about you
  • Right to correction: request correction of inaccurate or incomplete information
  • Right to deletion: request deletion of your personal information
  • Right to restrict processing: restrict information processing in certain circumstances
  • Right to data portability: obtain your data in a structured format
  • Right to object: object to data processing based on legitimate interests

Children’s Privacy

Our Services are not directed to children under the age of 13. We do not knowingly collect personal information from children. If you believe we have inadvertently collected information from children, please contact us immediately and we will delete it as soon as possible.

Policy Changes

We may update this Privacy Policy from time to time. Any significant changes will be notified to you through website announcements. The updated policy will take effect immediately upon publication. We recommend that you review this page regularly to stay informed of the latest information.

Contact Us

If you have any questions, comments, or suggestions about this Privacy Policy, or wish to exercise your rights, please contact us through the following means:

Applicable Law

This Privacy Policy is governed by the laws of the People’s Republic of China. We comply with the requirements of the “Personal Information Protection Law of the People’s Republic of China”, “Cybersecurity Law of the People’s Republic of China” and other relevant laws and regulations.