Do Dogs Have Inner Clocks?

My neighbor has 5 (thats right 5) dogs and my bedroom in on the same side as their dog house.... Yep! you gessed it...... there is constant barking in my ears. I love dogs but when i'm trying to get my zzzz's it's a whole other story.

There is a particular one that has a BIG voice (or should a say bark) he likes to come to the fence and bark like there is no tomorrow. I am thisclose to throwing something at it one of these nights.lol