Where you live, do you have any funky weather conditions or phenomena or stuff like that?
Living fairly far north, I suffer from midnight sun in the summer (because it's REAL barrel of laughs to wake up 4 AM from frickin' screaming birds and blazing sunlight). Technically it isn't really midnight sun, not quite far enough north -- the sun barely goes beneath the horizon between like 11 PM and 2 AM, but it's still so bright you could read a book outdoors without any artificial lighting. So there's some sort of twilight thing going on, but that's as far as it goes. It never goes pitch black any time of the day. And in part of the winter, the days are so short it's absolutely ridiculous. There are some days the sun sets somewhere around 3 PM.