Change settings in Reminders on Mac
Use Reminders Settings to set the default reminder list and settings for all-day reminders.
To change these settings in the Reminders app on your Mac, choose Reminders > Settings.
Click the pop-up menu, then choose a list.
To set a time to be reminded about all-day reminders, select the Today Notification checkbox, then enter the time you want to be reminded.
To show all-day reminders as overdue starting on the next day, select the “Show all-day reminders as overdue” checkbox.
Include both overdue items and items due today in the badge count shown on the Reminders app icon in the Dock.
Select Mute Notifications to turn off notifications for tasks assigned to you in a shared list.