Privacy Policy

Last reviewed on 25 April 2026.

This Privacy Policy explains how DDMMYYYY.net ("we", "us", "the site") handles information about visitors to https://ddmmyyyy.net. It covers what we collect, why, how long we keep it, who we share it with, and the choices you have. Questions about this policy can be sent to [email protected].

1. Who we are

DDMMYYYY.net is an independent reference website covering date and time formats, calendar systems, time zones, and related programming topics. The site is operated as an editorial project and is supported by display advertising. For the purposes of data protection law, the operator of the site is the data controller for any personal data processed in connection with the site.

2. Information we collect

We do not require you to create an account, sign in, or submit a form to use the site. The data we process falls into a small number of categories:

• Server log data. Like most websites, our hosting provider records standard request information when pages and assets are served. This typically includes IP address, user agent, referring URL, the resource requested, and a timestamp. Logs are used for security, abuse prevention, and basic operational diagnostics.
• Analytics data. We use Google Analytics to understand how the site is used in aggregate (for example, which pages are visited and how visitors arrive). Analytics data is collected through cookies and similar technologies. See section 4.
• Advertising data. The site displays advertising. Ad partners (including Google) may set their own cookies and use device identifiers to personalise ads, measure performance, and prevent fraud. See section 5.
• Email correspondence. If you email us at the address on the contact page, your message and email address are processed only to respond to you and, where relevant, fix what you wrote about. Email correspondence is not used for marketing.

We do not knowingly collect special-category personal data (such as health, biometric, or political data) and we do not direct the site to children under 13. If you believe a child has provided personal data through the site, contact us and we will delete it.

3. Cookies and similar technologies

Cookies are small text files placed on your device by your browser. The site itself does not set first-party cookies for tracking; the cookies in use come from Google Analytics and from advertising partners. The full list and what each category does is described in our Cookie Policy.

4. Google Analytics

We use Google Analytics, a service provided by Google, to measure how the site is used. Google Analytics uses cookies and similar identifiers to collect information such as the pages you view, how long you spend on each page, and approximate location derived from IP. We use this information in aggregate to improve the site's structure and content.

You can opt out of Google Analytics across all sites by installing the Google Analytics Opt-out Browser Add-on, or by using browser settings or extensions that block analytics scripts.

5. Google AdSense and advertising

The site uses Google AdSense and may use additional advertising networks to display ads. Standard advertising disclosures apply:

• Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to this site or other sites.
• Google's use of advertising cookies enables it and its partners to serve ads based on your visit to this site and/or other sites on the internet.
• You may opt out of personalised advertising by visiting Google Ad Settings. You may also opt out of a third-party vendor's use of cookies for personalised advertising at aboutads.info or youronlinechoices.com.

For Google's broader policies on how data is used in advertising, see Google's Advertising Privacy & Terms.

We may also use additional advertising networks. These third parties may collect device and browser information through their own cookies and technologies. Where present, their data practices are governed by their own privacy policies.

6. Legal bases for processing (EEA/UK)

If you are in the European Economic Area or the United Kingdom, the lawful bases on which we rely include:

• Legitimate interests for security logging, basic operational analytics, and replying to email you initiate.
• Consent for non-essential cookies including analytics and personalised advertising, where required by local law. Where consent is required, you can withdraw it at any time using the controls described in the Cookie Policy.

7. Your rights

Depending on where you live, you may have the right to:

• Access the personal data we hold about you.
• Have inaccurate data corrected.
• Have your data deleted, subject to legal retention obligations.
• Object to or restrict certain processing, including direct marketing (we do not perform direct marketing).
• Withdraw consent for cookie-based processing.
• Lodge a complaint with your local data protection authority.

California residents have specific rights under the CCPA/CPRA, including the right to know what categories of personal information are collected, the right to deletion, and the right to opt out of "sale" or "sharing" of personal information for cross-context behavioural advertising. We do not sell personal information for money. Where ad partners are considered to be "sharing" personal information for behavioural advertising under California law, you can opt out using the controls referenced in section 5.

To exercise any of these rights, email [email protected]. We may need to verify your identity before responding.

8. Data retention

We do not retain personal data longer than necessary for the purpose for which it was collected.

• Server logs are retained for a short rolling window for security and operational purposes.
• Analytics data retention is governed by the configuration of Google Analytics and Google's published retention controls.
• Advertising data is retained by the relevant ad partners under their own policies.
• Email correspondence is retained for as long as is reasonably necessary to handle the matter you wrote about, and then deleted or archived.

9. International transfers

The third-party services we use, including Google's analytics and advertising products, may process data outside your country of residence. These providers publish their own safeguards (such as the EU Standard Contractual Clauses) for international transfers, which we rely on where applicable.

10. Security

We take reasonable steps to protect the integrity of the site and the limited data we handle. No system connected to the public internet can be guaranteed to be fully secure; if we become aware of a security incident affecting personal data, we will respond in accordance with applicable law.

11. Changes to this policy

We may update this Privacy Policy when our practices change or when the services we use change. The "Last reviewed" date at the top of this page reflects the most recent review. Material changes will be highlighted on the home page or via the policy page itself for a reasonable period.

12. Governing law

This policy is governed by the laws of [Jurisdiction]. Where local data protection laws apply to you (for example, in the EEA, the UK, or California), those laws apply in addition to this policy.

13. Contact

For privacy questions, complaints, or requests, email [email protected].