Calendarium

Calendarium

A rich New Tab & homepage widget: date, moon phase, sun times, zodiac, name days, holidays, folk sayings, alternate calendars, and optional Wikipedia "on this day" content. Also available as a toolbar popup and full-page view.

Calendarium turns your New Tab page (and, optionally, your homepage) into a glanceable daily almanac:

• Date & time, with day-of-year, ISO week number, and month/New Year countdown
• Moon phase, age, moonrise/moonset
• Sunrise & sunset for your location plus up to 3 extra cities
• Western & Chinese zodiac
• Name days, national holidays, folk-calendar sayings, and seasonal periods
• Alternate calendar dates: Julian, Hebrew, Islamic, Persian
• Optional Wikipedia "on this day" births/deaths/events and article of the day (only fetched if you enable it — requests a separate permission)
• Light/dark theme (follows your system, or set manually) and independent background customization (solid color, gradient, or your own image URL)
• Optional search box using your default search engine

This is an open-source port (GPL-3.0) of the calendarium@kami911 Cinnamon desktop widget to a modern Firefox WebExtension — all astronomical/calendar calculations are the same well-tested algorithms from the original, just running in the browser.

New Tab Tools

calendar, new tab, moon phase, sunrise sunset, zodiac, name days, holidays, wikipedia, homepage

kami911@gmail.com

GPL-3.0 (see LICENSE in the source)