Cookie Policy
Last updated: June 2026
1. Overview
This Cookie Policy explains how WorldTimezone uses cookies and similar tracking technologies. Cookies are small text files stored on your device when you visit a website. We use cookies to provide essential functionality and, with your consent, to analyze how our site is used.
2. Cookie Categories
We classify our cookies into three categories:
- Strictly Necessary: Required for the website to function. Cannot be disabled.
- Performance / Analytics: Help us understand how visitors use our site. Only enabled with your consent.
- Marketing: Used to display relevant advertisements (if applicable). Only enabled with your consent.
3. Strictly Necessary Cookies
| Cookie | Purpose | Duration | Category |
|---|---|---|---|
| NEXT_LOCALE | Stores your language/locale preference (set by Next.js) | 1 year | Strictly Necessary |
| cookie-consent | Records your cookie consent choice (stored in localStorage) | Indefinite (until cleared) | Strictly Necessary |
These cookies are essential for the website to function and cannot be disabled.
4. Performance / Analytics Cookies
| Cookie | Purpose | Duration | Category |
|---|---|---|---|
| _ga | Google Analytics — distinguishes unique users | 2 years | Performance |
| _ga_* | Google Analytics — maintains session state | 2 years | Performance |
| _clck | Microsoft Clarity — stores user preferences and unique identifier | 1 year | Performance |
| _clsk | Microsoft Clarity — session state and navigation data | 1 day | Performance |
| CLUID | Microsoft Clarity — unique user identifier | 1 year | Performance |
| ANONYMOUSID | Microsoft Clarity — anonymous user identifier | 1 year | Performance |
| __cl.* | Microsoft Clarity — additional telemetry cookies (various __cl prefixed cookies) | Session / 1 year | Performance |
| MUID | Microsoft Clarity — machine unique identifier (also used by Bing) | 1 year | Performance |
These cookies are only set if you have given consent via our cookie banner. Google Analytics data is retained for 14 months. Microsoft Clarity session recordings are retained for 18 months.
Note: Microsoft Clarity may set additional cookies beyond those listed above. The cookies shown are the primary ones identified at the time of writing.
5. Marketing Cookies
| Cookie | Purpose | Duration | Category |
|---|---|---|---|
| _gcl_au | Google Ads — ad conversion tracking and measurement | 3 months | Marketing |
| __gads | Google AdSense — stores advertisement selection preferences | 13 months | Marketing |
| __gpi | Google AdSense — stores user interaction with ads | 13 months | Marketing |
| IDE | Google AdSense / DoubleClick — personalized advertising | 13 months | Marketing |
Marketing cookies are only set if advertising is enabled and you have given consent. They are disabled by default in our consent management system.
6. Complete Cookie List (All Categories)
| Cookie | Purpose | Duration | Category |
|---|---|---|---|
| NEXT_LOCALE | Stores your language/locale preference (set by Next.js) | 1 year | Strictly Necessary |
| cookie-consent | Records your cookie consent choice (stored in localStorage) | Indefinite (until cleared) | Strictly Necessary |
| _ga | Google Analytics — distinguishes unique users | 2 years | Performance |
| _ga_* | Google Analytics — maintains session state | 2 years | Performance |
| _clck | Microsoft Clarity — stores user preferences and unique identifier | 1 year | Performance |
| _clsk | Microsoft Clarity — session state and navigation data | 1 day | Performance |
| CLUID | Microsoft Clarity — unique user identifier | 1 year | Performance |
| ANONYMOUSID | Microsoft Clarity — anonymous user identifier | 1 year | Performance |
| __cl.* | Microsoft Clarity — additional telemetry cookies (various __cl prefixed cookies) | Session / 1 year | Performance |
| MUID | Microsoft Clarity — machine unique identifier (also used by Bing) | 1 year | Performance |
| _gcl_au | Google Ads — ad conversion tracking and measurement | 3 months | Marketing |
| __gads | Google AdSense — stores advertisement selection preferences | 13 months | Marketing |
| __gpi | Google AdSense — stores user interaction with ads | 13 months | Marketing |
| IDE | Google AdSense / DoubleClick — personalized advertising | 13 months | Marketing |
7. Managing Your Preferences
You have several options to manage cookies:
- Cookie Consent Banner: When you first visit WorldTimezone, a cookie consent banner appears. You can choose to accept or decline non-essential cookies.
- Browser Settings: You can control and delete cookies through your browser settings. Most browsers allow you to block third-party cookies and clear existing cookies.
- Opt-out Links: You can opt out of Google Analytics at Google Analytics Opt-out and Microsoft Clarity at Microsoft Clarity Opt-out.
To change your consent choice after the initial banner, you can clear your browser’s localStorage for our site and the consent banner will reappear.
8. Governing Law
This Cookie Policy shall be governed by and construed in accordance with the laws of the United Kingdom, without regard to conflict of law principles.
9. Changes to This Policy
We may update this Cookie Policy from time to time to reflect changes in technology, regulation, or business practices. We will update the "Last updated" date at the top of this page whenever changes are made.
10. Contact Us
For questions about this Cookie Policy, please contact us at privacy@worldtimezone.online.