Change your Reminders settings on iPhone
You can customize your preferences for the Reminders app in Settings. Choose the default list for new items, set a time to see notifications for all-day reminders, and more.
From the Home Screen or App Library, go to Settings > Reminders, then adjust any of the settings. For example:
Siri & Search: Allow content in Reminders to appear in Siri Suggestions or search results.
Notifications: Set how you receive notifications, choose the alert style, and have Siri announce notifications.
Accounts: Manage your accounts and how often data is updated.
Default List: Choose the list for new items you create outside of a specific list, such as items you create using Siri.
Today Notification: Set a time to see notifications for all-day reminders that have been assigned a date without a time.
Show as Overdue: The scheduled date turns red for overdue all-day reminders.
Include Due Today: The badge count includes overdue items and items due today.
Mute Notifications: Turn off notifications for assigned items.