I want to schedule Airplane Mode during the night (10PM–6AM) on my iPhone.
How can I do that?
I used to turn off my previous phone (a non-smartphone). I do that especially to save some battery life.
This is possible in iOS 13 using the Shortcuts app. You have to create an automation to enable the airplane mode in the evening and another automation to disable it in the morning.
I used the following:
Airplane mode ON
The same process for the morning
Airplane mode OFF
For iOS 12 and older, it's not possible to schedule Airplane Mode unless you have a jailbroken device. If you want to jailbreak your iPhone, there's a few apps that do this exact thing.
This sounds like it would be a good idea so I recommend you let Apple know you want this on their iPhone Feedback page.