Universal Calendar

Calendar and quick add: browse years and months, jump to a date, see its distance from today and add plans beside the calendar. Click a date’s alarm icon to view its plans.
Organized plans: manage events, tasks, birthdays and anniversaries with times and notes. Filter by type, date or keyword and expand date groups. New plans start today or later; past records remain available.
Holidays and traditions: choose a holiday region independently of the interface language. Chinese mode also offers lunar dates, solar terms and traditional festival introductions.
Date math: count the days between dates or add and subtract days.
Made for Quick: use the inline or detached window with Quick’s theme and appearance, with support for 10 interface languages.

Explore dates and holidays, and organize events, tasks and anniversaries.

In action

About this plugin

Universal Calendar

Explore dates and holidays, and organize events, tasks and anniversaries.

Calendar and quick add: browse years and months, jump to a date, see its distance from today and add plans beside the calendar. Click a date’s alarm icon to view its plans.
Organized plans: manage events, tasks, birthdays and anniversaries with times and notes. Filter by type, date or keyword and expand date groups. New plans start today or later; past records remain available.
Holidays and traditions: choose a holiday region independently of the interface language. Chinese mode also offers lunar dates, solar terms and traditional festival introductions.
Date math: count the days between dates or add and subtract days.
Made for Quick: use the inline or detached window with Quick’s theme and appearance, with support for 10 interface languages.

Search for “Calendar” in Quick, select a date and add your first plan. Plans are stored locally; cross-device sync depends on Quick’s account and sync settings. This version does not provide background notifications or scheduled reminders. Screenshots use sample plans.