The guests start lining up before 3:30 p.m., which isn’t usually considered “nighttime” for most people. For these guests, however, and the people who serve them, 3:30 is the beginning of a long evening routine that mostly goes unnoticed by the city around them and ends with housing an average of 58 to 65 homeless people each night. This is the Hope House, operated by Penobscot Community Health Center and one of Bangor’s two main homeless shelters.