flight mode automatic

iPhone 6S

I am missing an automatic flight mode feature in my iPhones (from 4S-6S). I wish it would be possible to set the phone automatically in flight mode. For example over night mo-fr from 23:00-06:30 and back in "normal" mode from 06:30-23:00 or 1h off, 5 min on (checking for messages), 1 h off, 5 min on and so on... . This would save battery and electrosmog. I really do not need the phone feature all daytime and certainly not at night. Switching off and on by hand ist not really comfortable. Apple, please optimase the product. Thank you very much.