The Montgomery County Animal Services and Adoption Center is located at 7315 Muncaster Mill Road, Derwood, MD. 20855. The hours are 12:00 Noon - 7:00 PM Monday, Tuesday, Thursday, and Friday. Saturday and Sunday are 12:00 Noon - 5:00 PM. The shelter is closed to the public on Wednesdays. Please see the website for updated hours due to COVID-19 or other situations that would result in abbreviated hours.