Welcome to Jet Lag Calculator ("we," "our," or "us"). We respect your privacy and are committed to protecting your personal information. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you visit our website and use our jet lag calculation service.
By using our website, you agree to the collection and use of information in accordance with this policy. If you do not agree with our policies and practices, please do not use our service.
1. Information We Collect
When you use our Jet Lag Calculator, you voluntarily provide the following information:
- Travel Information: Origin city, destination city, departure date/time, arrival date/time
- Sleep Schedule: Your typical bedtime and wake time
- Location Data: City names and geographic coordinates for time zone calculations
Important: We do NOT require you to create an account, and we do NOT collect personally identifiable information such as your name, email address, or payment information.
When you access our website, we may automatically collect certain information, including:
- Usage Data: Pages visited, time spent on pages, clicks, and navigation paths
- Device Information: Browser type, operating system, device type, screen resolution
- IP Address: Your Internet Protocol address (used for analytics and security)
- Cookies: Small data files stored on your device (see Section 4 below)
- Server Logs: Standard web server logs that capture request metadata (IP address, timestamp, URL) for security and debugging purposes. These logs do not contain your travel itinerary or sleep schedule.
We want to be clear about what we do NOT collect:
- We do not collect your name or personal identification
- We do not collect your email address (unless you contact us voluntarily)
- We do not collect payment or financial information
- We do not collect sensitive personal data or health information
- We do not track your precise real-time location
2. How We Use Your Information
We use the information we collect for the following purposes:
2.1 To Provide Our Service
- Calculate personalized jet lag adjustment plans
- Generate light exposure and sleep schedules
- Provide melatonin timing recommendations
2.2 To Improve Our Service
- Analyze how users interact with our website
- Identify and fix technical issues
- Understand which features are most useful
- Optimize user experience and performance
2.3 For Analytics and Research
- Understand usage patterns and trends
- Generate aggregated, anonymized statistics
- Measure website traffic and engagement
2.4 For Legal Compliance
- Comply with applicable laws and regulations
- Respond to legal requests and prevent misuse
- Protect our rights and the rights of our users
3. Data Storage and Security
3.1 How We Store Your Data
Your jet lag calculation data (travel information and sleep schedule) is:
- Processed in your browser: Calculations happen on your device
- Temporarily stored: Data is only kept in your browser session
- Not saved permanently: We do not store your trip details on our servers
- Cleared automatically: Data is removed when you close your browser or clear your cache
3.2 Security Measures
We implement reasonable security measures to protect your information:
- HTTPS encryption for all data transmission
- Regular security updates and monitoring
- Restricted access to any stored data
- Industry-standard security practices
Important: While we strive to protect your information, no method of transmission over the Internet or electronic storage is 100% secure. We cannot guarantee absolute security.
4. Cookies and Tracking Technologies
We use cookies and similar tracking technologies to enhance your experience:
4.1 Types of Cookies We Use
- Essential Cookies: Required for the website to function properly (e.g., storing your calculation in your browser session)
- Analytics Cookies: Help us understand how visitors use our website (e.g., Google Analytics)
- Preference Cookies: Remember your settings and preferences
4.2 Managing Cookies
You can control cookies through your browser settings:
- Most browsers allow you to refuse or delete cookies
- You can set your browser to notify you when cookies are sent
- Blocking essential cookies may affect website functionality
5. Third-Party Services
We may use third-party services that collect, monitor, and analyze information:
5.1 Analytics Services
We may use Google Analytics or similar services to understand website usage. These services may use cookies to collect information such as:
- How often users visit the website
- What pages they visit and in what sequence
- How long they spend on each page
Learn more: Google Privacy Policy
5.2 Advertising Services
We may display advertisements through Google AdSense or similar services. These services may use cookies to show ads based on your visits to this and other websites. You can opt out of personalized advertising by visiting Google Ad Settings.
5.3 External APIs
We use the TimeZoneDB API to retrieve timezone information for calculations. Only city names and coordinates are sent to this service. Review their privacy policy at TimeZoneDB Privacy.
6. Your Privacy Rights
Depending on your location, you may have certain rights regarding your personal information:
- Access: Request a copy of the information we hold about you
- Correction: Request correction of inaccurate information
- Deletion: Request deletion of your information
- Objection: Object to certain processing of your information
- Data Portability: Request transfer of your data to another service
- Withdrawal of Consent: Withdraw consent where we rely on it
Note: Since we do not collect personal identification information and do not store your trip calculations permanently, there is minimal personal data for us to access, correct, or delete. Your calculation data exists only in your browser session.
7. Children's Privacy
Our service is not directed to children under the age of 13. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us.
If we discover that we have collected personal information from a child under 13 without parental consent, we will take steps to delete that information as quickly as possible.
8. Changes to This Privacy Policy
We may update our Privacy Policy from time to time. We will notify you of any changes by:
- Posting the new Privacy Policy on this page
- Updating the "Last Updated" date at the top of this policy
You are advised to review this Privacy Policy periodically for any changes. Changes are effective when posted on this page.
9. Contact Us
If you have questions or concerns about this Privacy Policy, please contact us:
Jet Lag Calculator
Email: info@jetlagcalc.com
Website: https://www.jetlagcalc.com
We will make reasonable efforts to respond to your inquiry within 30 days.