Meridock: World Clock & Timezone ConverterBrowser add-on for Firefox and Opera · published by Zydeno

Terms of Use

Publisher: Zydeno · Effective 19 October 2026 · Contact: [email protected]

The service

Meridock is a browser extension that shows the time in places you choose, helps you plan a time across time zones and converts times you select on web pages. It runs entirely in your browser. This version is free to use.

Accuracy

Times, time zones and daylight saving time come from the time-zone data of your browser; sunrise, sunset and twilight are calculated from each city's coordinates and can differ from local tables by a few minutes. Reading a time from free text is a best effort: Meridock shows what it understood and asks when an abbreviation can mean several zones, but please check important appointments, flights and legal deadlines with the organiser.

Your data

Your places, labels and settings stay in your browser, as described in the Privacy Policy. You are responsible for keeping your own backup files.

Acceptable use

Use Meridock for lawful purposes. Do not try to break, overload or reverse its protections in a way that harms other people.

Licences

The extension code and design belong to Zydeno. Bundled fonts (Akt, B612) are under the SIL Open Font License 1.1. City data comes from GeoNames (CC BY 4.0), the IANA time-zone database (public domain), Unicode CLDR (Unicode License v3) and Wikidata (CC0); see THIRD_PARTY_NOTICES.md inside the package.

No warranty

Meridock is provided "as is", without warranty of any kind. To the extent the law allows, Zydeno is not liable for missed meetings or other losses that come from using it.

Changes

These terms may be updated with a new effective date at this address. Continuing to use the extension means you accept the new version.

Contact

[email protected]