Privacy Policy

Last updated: March 26, 2026
The short version

Time Converter does not track you. There are no servers, no accounts, no analytics, and no telemetry of any kind. The extension runs entirely inside your browser. Your browsing data never leaves your machine.
How it works technically

When you visit a site you've enabled the extension on, the content script scans the visible text for time patterns. It converts detected times using the Luxon library, which runs locally in your browser. No external API calls are made. The timezone conversion happens entirely on your device using your system's timezone data.
Permissions explained

The extension requests two permissions upfront. Here is exactly what each one does and why it is needed.

storage saves your preferences (time format, display mode, target timezone, enabled/disabled state). On Chrome, if you are signed into your Google account, Chrome may sync these four settings across your browser instances via chrome.storage.sync. On Firefox, settings are stored locally. In both cases, we have no access to your browser account or any synced data beyond these settings.

activeTab lets the extension read the URL of the tab you are currently viewing when you click its toolbar icon. This is how it knows which site to request access for. It does not run on pages automatically or in the background.

Beyond those two, the extension uses optional host permissions. It does not request access to all sites by default. Instead, when you click Enable on this site, your browser prompts you to grant access to that specific site. The extension only runs its content script on sites you have explicitly approved. You can revoke access for any site from the popup or the settings page, and the browser removes the permission immediately.
Data collection

None. The extension collects no data. It sends no network requests. It has no server to send data to. There is no analytics code, no error reporting service, no usage tracking. Zero.
Third-party code

The extension bundles Luxon, a JavaScript date/time library. It runs entirely in-browser. Luxon makes no network requests and has no telemetry.
What happens to your data

There is no data. If you uninstall the extension, your browser removes the four settings values from storage. That is everything. There is nothing else to delete because nothing else was ever stored.
Distribution

Time Converter is available on the Chrome Web Store and as a Firefox add-on. It is the same extension with the same permissions and behavior on both browsers. The extension is open source under the MIT License. The source code is publicly available. You can read every line of it. If you prefer not to trust a pre-packaged extension, you can clone the repo and load it unpacked yourself. The code does what this policy says it does, and you can verify that.
Limited Use Compliance

The use of information received from Google APIs and browser permissions will adhere to the Chrome Web Store User Data Policy, including the Limited Use requirements.
Contact

Questions about this policy or the extension? support@lethio.com

In summary: Time Converter runs in your browser, converts times locally, and does not collect, store, or transmit any data. That is the whole policy.