Still can't turn off don't disturb on iphone - what am i missing?

if it keeps coming back on by itself and the schedule is empty, check whether you've got a mac or ipad on the same apple id. focus syncs across devices by default, so turning it on over there turns it on on the phone. there's a share across devices toggle in Focus settings.

it got folded into Focus a few versions back, which is half of the confusion. pull down control centre, tap Focus, tap Do Not Disturb to switch it off. if it turns itself back on later you've got a schedule or smart activation running - Settings, Focus, Do Not Disturb, and clear anything in the schedule section. driving focus is the other sneaky one, it can fire off your car's bluetooth without you asking.