Privacy Policy

Overview

1. Introduction & Core Principles

ClockHorizon ("we," "our," or "us") provides online timekeeping, clock, timer, stopwatch, alarm, time zone conversion, market schedule, holiday calendar, and weather tools through clockhorizon.com. We believe useful utility tools should respect user privacy. Our default architecture is local-first: calculations, timers, alarms, and interface preferences operate directly in your web browser.

This Privacy Policy explains what information is collected when you visit ClockHorizon, how that information is used, how third-party advertising and analytics services operate on the site, and your rights and options regarding your personal data.

Data Collection

2. Information We Collect & How It Is Used

We collect minimal information necessary to deliver accurate time tools, prevent abuse, and maintain site performance:

Estimated City & Geolocation: To automatically display your current local time, local weather, and nearby time zones without requiring manual setup, our servers perform a coarse IP-based lookup when you load the site. This lookup estimates your general city, region, or time zone. We do not track or request high-precision GPS coordinates from your device.

Client-Side Preferences: Settings such as your preferred color theme (dark or light mode), time display format (12-hour AM/PM or 24-hour military format), alarm tones, volume levels, and pinned cities are saved locally on your device using HTML5 Web Storage (localStorage). This data stays on your machine and is not sent to our servers during ordinary browsing.

Contact Form Communications: When you send a message through our Support & Help Center, we collect your name, email address, topic, and message content solely to reply to your inquiry. We do not sell or share contact details with third-party marketing brokers.

Technical Server Logs: Like virtually all web services, our web servers log standard HTTP requests (such as your IP address, browser user-agent, operating system, requested URL, date/time stamp, and referring URL) to monitor uptime, diagnose crashes, and protect against denial-of-service attacks.

Advertising Disclosures

3. Google AdSense & Third-Party Advertising Disclosures

To keep ClockHorizon free and publicly accessible without subscription fees, we display advertisements provided by Google AdSense and third-party advertising networks. In accordance with Google Publisher Policies, please review the following required disclosures:

Third-Party Vendor Cookies: Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to your website or other websites on the Internet.

Google Advertising Cookies: Google's use of advertising cookies (such as the DoubleClick cookie) enables it and its partners to serve ads to your users based on their visit to ClockHorizon and/or other sites across the World Wide Web.

Personalized Advertising Opt-Out: Users may opt out of personalized advertising by visiting Google Ads Settings. Alternatively, you can opt out of a third-party vendor's use of cookies for personalized advertising by visiting www.aboutads.info or the Your Online Choices portal for European visitors.

Consent in the EEA & UK: For visitors located in the European Economic Area (EEA), the United Kingdom (UK), and Switzerland, we comply with the Google EU User Consent Policy. You are presented with a Consent Management Platform (CMP) dialog that lets you customize your consent choices for advertising cookies and personalized ad targeting.

Analytics & Security

4. Analytics, Cookies & Verification Services

We employ trusted third-party technologies to ensure site security, verify human interactions, and understand general site usage trends:

Google Analytics 4 (GA4): We use Google Analytics (property ID G-WS2T5BSZVG) to analyze anonymous, aggregated metrics such as page views, visitor regions, session durations, and popular tools. Google Analytics uses first-party cookies to collect this information. You can opt out of Google Analytics tracking by installing the official Google Analytics Opt-out Browser Add-on.

CaveInsights Telemetry: We utilize CaveInsights for privacy-respecting client analytics to monitor page rendering speeds and interface performance without building intrusive behavioral profiles.

Cloudflare Turnstile: Our contact and support form is protected against automated spam and malicious abuse by Cloudflare Turnstile. Turnstile evaluates browser signals without presenting difficult visual puzzles, verifying that submissions originate from legitimate human users.

Data Security

5. Zero-Knowledge Cloud Backup & Device Synchronization

ClockHorizon includes an optional cross-device synchronization feature for users who wish to back up or link alarms, timers, and profile settings across multiple devices (such as a laptop and phone).

This system uses zero-knowledge end-to-end encryption (E2EE). Your backup data is encrypted directly in your browser using an encryption key generated on your device before any payload is transmitted to the synchronization server. We cannot read, inspect, or decrypt your alarm labels, customized schedule times, or saved profile data.

Cookie Management

6. Managing Cookies in Your Browser

You have full control over cookie storage. Most web browsers allow you to view, manage, delete, and block cookies through their settings:

You can configure your browser to reject all cookies or alert you when a cookie is placed. Note that disabling essential functional storage may reset your chosen theme (dark/light mode) or time format (12h/24h) between visits, as those preferences rely on local storage.

For step-by-step instructions on managing cookies in popular browsers, visit:

User Rights

7. Your Privacy Rights (GDPR, CCPA/CPRA & Global Rights)

Depending on your geographic location, you may have specific legal rights under privacy regulations such as the General Data Protection Regulation (GDPR) or the California Consumer Privacy Act (CCPA/CPRA):

Right of Access & Portability: You may request details about the categories and specific pieces of personal information we maintain about you.

Right of Correction & Erasure: You can request correction of inaccurate data or deletion of communications sent via our contact form.

Non-Discrimination: We will never discriminate against you for exercising your privacy rights. All ClockHorizon core clock, timer, and time zone utilities remain completely free and accessible.

Do Not Sell or Share My Personal Information: ClockHorizon does not sell your personal information or contact details for monetary consideration.

Children

8. Children's Privacy (COPPA Compliance)

ClockHorizon is designed as a general-audience educational and utility tool for people of all ages to learn about world time zones, schedule focus intervals, and track international holidays. We do not knowingly collect personal identifiable information from children under 13 years of age (or under 16 in the European Union). If you believe a child has submitted personal details through our contact form, please contact us immediately, and we will delete the record promptly.

Contact & Inquiries

9. Questions & Data Protection Inquiries

If you have questions, feedback, or requests regarding this Privacy Policy or your personal information, please contact our team:

Email: [email protected]
Online Support: ClockHorizon Help & Support Center