Halloween is full of ghouls and ghosts, but in Alaska there are other dangers – cold, dark and wildlife. Halloween trick-or-treating on Joint Base Elmendorf-Richardson is scheduled from 6 to 8 p.m., Oct. 31. Curfew times for children 15 years old and under is 11 p.m.; for 16 and 17-year-olds, 1 a.m.