Use Dark Mode
You can set your mobile phone to use a dark theme so you can use your mobile phone in dark surroundings and not inconvenience other people. Furthermore, you can create a schedule for automatic change of theme at certain times.
Find "Display & Brightness"
Tap Display & Brightness.
Turn on Dark Mode
Turn automatic Dark Mode activation on or off
Tap the indicator next to "Automatic" to turn the function on or off.
If you turn on the function, tap Options and follow the instructions on the screen to select the required period of time for Dark Mode.
Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.