Been using 11PM since launch day. I always leave my iPhone and past phones charging from 10pm-6:15am. I like to wake up for work with 100% battery life. 11PM has given me the best battery life ever. I run my own business. So off charger at 6:15. Get to warehouse at 6:45. Start from 7am-4:15 pm. On my phone (emails, calls, texts, whatsapp, orders, etc) Any phone I can do that with and still be at 50% when I get home its king to me. I have chargers at office/car/house (wireless desktop chargers) so if I need extra I just charge which I never do. So the 12PM will do fine for me. Maybe get home at 50%-60% left. Who knows. I know with bigger phones means bigger battery.