The typical time for children to go trick-or-treating in Maryland is between 5 and 8 p.m., as of October 2014. Factors that determine the specific time include the age of the child, city, hour of sunset and weather.
In the month of October, sunset usually occurs between 6 and 7 p.m. However, the exact moment that the sun sets varies from day to day. The Centers for Disease Control and Prevention recommends that children carry a flashlight or wear a piece of reflective tape if they decide to go trick-or-treating after sunset. The CDC also recommends that children do not go trick-or-treating alone, regardless of time.