To clear any items you’ve added to the calendar.
-Tap on the + button at the top of the screen
-Tap RESET then on the shift or item you’ve added
This will return the day back to your base, shift pattern.
To completely remove the shift,
-tap on the + button
-Tap “No Shift” (Off)
-tap on the day you want to remove
-Once you’re done, tap the X at the top of the screen.