From the Home screen, tap Settings.
Scroll to Display & Brightness.
Tap Display & Brightness.
Tap or slide the Automatic switch to ON.
You can manually turn on Dark Mode by tapping Dark.
Tap Options.
Tap Custom Schedule.
Tap Light.
Select the time you would like your device to switch to Light Mode.
Tap outside the time selection popup save your changes.
Tap Dark.
Select the time you would like your device to switch to Dark Mode.
You've completed the steps!
