Privacy policy
Your dates stay in
your browser.
EPOCH is built to need as little of your data as possible. This policy explains, in plain language, what we do and don't collect when you use the site.
Last updated: 30 June 2026
The short version
- The dates you type into any calculator are processed entirely in your browser and are never sent to us or stored anywhere.
- We don't ask you to create an account, and we don't sell or share personal data.
- We use Google Analytics to understand which tools are useful. That sets cookies and collects limited, mostly anonymous usage data.
What we don't collect
Every calculator on EPOCH runs as client-side code. When you enter a birth date, an end date or any other value, the calculation happens on your own device. Those values are not transmitted to our servers, logged or saved — closing the tab discards them.
Analytics
We use Google Analytics to see aggregate information such as which pages are visited, roughly where visitors come from, and which devices and browsers are used. This helps us decide what to improve. Google Analytics sets cookies and may collect data including your IP address (typically truncated/anonymised), referring page and general usage events.
This data is processed by Google on our behalf. You can read more in Google's privacy policy, and you can opt out across all sites using the Google Analytics opt-out browser add-on.
Cookies
The only cookies EPOCH uses are those set by Google Analytics, described above. We don't use advertising or cross-site tracking cookies. You can block or delete cookies at any time through your browser settings; the calculators will continue to work without them.
Hosting and server logs
The site is served as static files through a hosting and content-delivery provider (Cloudflare). Like most web hosts, our provider may automatically process technical information such as IP addresses and request logs to deliver pages securely and protect against abuse. We don't use these logs to identify individual visitors.
If you email us
When you contact us at [email protected], we receive your email address and whatever you choose to write. We use it only to reply to you and don't add you to any mailing list.
Your rights
Depending on where you live, you may have rights to access, correct or delete personal data we hold about you, or to object to certain processing. Because we hold almost no personal data, most requests are straightforward — just email us and we'll help.
Children
EPOCH is a general-audience utility and is not directed at children. We do not knowingly collect personal data from children.
Changes to this policy
If we change how the site handles data, we'll update this page and the "last updated" date above. Significant changes will be reflected here before they take effect.
Contact
Questions about privacy? Email [email protected] or visit the contact page.