Supposing one day the sun didn't rise?

Sunrise is getting later every morning (for the next 22 days) – it now doesn’t come up until after 7:15am where I live. This isn’t my favorite time of year.

Anyway, suppose, one day, that it just stayed dark. Sun didn’t rise. We’re just in black all day and all night.

How long would it take for people to go nuts? How long would it take for the bible-mongers to decide that the world was ending? How long would it take for looting and murder and other types of behavior to become rampant?

[Yes, I am ignoring the science here – if the sun stopped shining, there would be other effects, and even if it’s dark in North America, it’s light on the other side of the world. But I’m asking for sociological theory here…]