Privacy Policy

Last updated: September 15, 2026.

This Privacy Policy explains how TimeAndDateCalculator.com handles information when you use the website and its date and time calculation tools. By using the site, you acknowledge the practices described below.

Calculations happen in your browser

The dates, times, and time zones you enter into the calculator are processed entirely on your own device using JavaScript. The calculator inputs and results are not sent to our servers or stored by us as part of the calculation service. We do not require an account, and we do not ask you to upload calculator data.

Information we may receive

When you visit the site, technical information may be processed automatically by hosting, analytics, advertising, security, or content-delivery providers. This information may include an approximate location derived from an IP address, browser and device type, operating-system information, pages viewed, referring website, date and time of a visit, and information about interactions with the site. We do not use this information to identify the contents of your calculator inputs.

If you contact us, we may receive the email address and other information that you choose to include in your message. We use that information to respond to your request, investigate calculation errors, and maintain the site.

Cookies and local storage

The calculator does not use cookies or browser storage to save your calculator inputs between visits. The site or third-party services used on the site may nevertheless use cookies, local storage, pixels, or similar technologies for purposes such as security, analytics, advertising, frequency control, measuring advertising performance, remembering privacy choices, or delivering content.

Our consent preference is stored locally in your browser under tdc_consent_v1 so the site can remember your choices. This preference record is used only to apply your privacy settings.

You can control or delete cookies through your browser settings. Disabling cookies may affect advertising, analytics, privacy-choice storage, or some website functions.

Google AdSense and advertising

We may display advertisements supplied by Google AdSense and other advertising partners. These providers may use cookies, web beacons, device information, IP-address information, or similar technologies to deliver, personalize, limit, measure, and report advertising, subject to their own policies and applicable law.

Google may use information collected through advertising technologies to show ads based on your visits to this and other websites. Depending on your location, your consent choices, and the advertising configuration in use, ads may be personalized or may be shown without personalization. We do not receive the contents of your calculator inputs through the calculator itself.

Google’s advertising and privacy information is available at Google’s Advertising Policies and Technologies page. You can also review Google’s Privacy Policy and, where available, manage advertising personalization through Google Ads Settings.

Consent and privacy choices

Non-essential services are blocked until you make a choice. The site offers separate choices for analytics (Google Analytics and Microsoft Clarity), advertising (Google AdSense), and external media (YouTube). You may accept, reject, or change applicable choices through the consent controls provided on the site. Where a privacy-choice link or control is displayed, it can be used to revisit your choices.

Google tags receive consent-mode signals with analytics and advertising storage denied by default. Where you allow a category, the relevant service is loaded and enabled; where you reject it, that service is not loaded by this site.

Some advertising or analytics technologies may be necessary for security, fraud prevention, frequency control, or the operation of a requested service. The availability of particular choices depends on your location, the services enabled on the site, and applicable law.

Analytics

We may use Google Analytics, Google Tag Manager, or another analytics service to understand general site usage, such as which pages are visited, approximate traffic levels, browser or device categories, and broad interaction patterns. Analytics may use cookies or similar technologies and may process information through the provider’s servers. Analytics is used to maintain, improve, and understand the website; it is not used to collect the content of your calculator inputs.

Where required, analytics will be used only after the applicable consent choice has been obtained. You can limit cookies through your browser settings and review the relevant provider’s privacy controls.

Microsoft Clarity and YouTube

Microsoft Clarity may record aggregate interaction information such as visits, navigation, and session behavior only when analytics consent is enabled. The tutorial video is loaded from YouTube only when external-media consent is enabled and you choose to play it. These providers may process information under their own privacy policies.

How we use information

We may use information to operate and secure the website, provide the calculator, respond to messages, investigate reported errors, understand aggregate usage, improve performance and accessibility, prevent abuse, comply with legal obligations, and manage advertising and consent preferences.

We do not sell the calculator inputs that you enter into the tool. We do not use those inputs to create a personal profile or account for you.

Data retention

Calculator inputs are processed locally and are not retained by us as part of the calculator service. Contact messages may be retained for as long as reasonably necessary to respond, keep support records, resolve disputes, prevent abuse, or satisfy legal obligations. Analytics, advertising, security, and hosting providers may retain information according to their own policies and configuration.

Third-party services and links

The site may use third-party services for hosting, security, analytics, advertising, consent management, email communication, or content delivery. Some pages may link to external resources, such as Microsoft’s documentation for Excel formulas. Third-party websites and services have their own privacy policies and terms, which we do not control. You should review those policies before providing information or using those services.

Children’s privacy

The site is a general-purpose information and calculator website. It is not directed to children under 13, and we do not knowingly collect personal information from children under 13. If you believe that a child has provided personal information to us, please contact us so that we can review and delete it where appropriate.

Your privacy rights

Depending on where you live, you may have rights concerning your personal information, such as the right to request access, correction, deletion, restriction, portability, or information about processing, and the right to object to or withdraw consent for certain processing. You may also have the right to complain to a data-protection authority.

To make a privacy request, contact us through the contact page. We may need to verify your request before completing it. Some rights are subject to exceptions under applicable law.

Security

We use reasonable technical and organizational measures appropriate to the nature of the website and the information handled. No internet transmission or storage system can be guaranteed to be completely secure. Do not send sensitive personal information through the contact address unless it is necessary for your request.

Changes to this policy

We may update this Privacy Policy when the site, services, advertising configuration, analytics, or legal requirements change. The “Last updated” date at the top of this page indicates when the policy was most recently revised. Continued use of the site after an update means that you acknowledge the revised policy to the extent permitted by law.

Contact

Questions about this policy or a privacy request can be sent via the contact page. Please include enough information for us to understand and respond to your request, but do not include unnecessary sensitive information.