CalendarMenu is highly configurable and allows you to specify exactly what you want CalendarMenu to show.

It also contains three Today Widgets for the Notification Center showing ...
• a monthly calendar with all your appointments, reminders and birthdays
• a list of all upcoming events
• a list of all upcoming reminders

Calendar features:
• shows all iCal calendar events
• calendars can be selected individually
• highlights birthdays read directly from OS X Contacts (Address Book)
• differentiates between normal and all-day events
• individually highlights events spanning multiple days
• can indivually hide normal events and/or events spanning multiple days
• provides daily and weekly overviews showing all calendar events and reminders (with due date) of the selected day or week
• shows calendar weeks and first weekday according to your current system configuration

Reminders features:
• reminders with a due date set are highlighted in the calendar
• allows to quickly mark reminders as finished or pending without leaving CalendarMenu
• you can individually (de)select reminder lists
• reminders can be sorted by their title, by due date, priority or calendar name (either ascending or descending)
• reminders without due date can be hidden
• reminders listed on the main window can be limited to a due date within the next X days

Compatibility: OS X 10.10 or later, 64-bit processor

Home Page - http://www.wrench.at/en/CalendarMenu/