october, 2015 Gaithersburg City Hall 31 S Summit Ave, Gaithersburg, MD 20877 sun25oct9:00 am- 2:00 pmGaithersburg City Elections - Early Voting @ Gaithersburg City HallSunday 9am-2pm Event Details Event Details Early voting at City Hall (GA01) will take place on the following dates – Sunday, October 25, 2015 9 a.m.-2 p.m. Tuesday, October 27, 2015 3-8 p.m. Saturday, October 31, 2015 Noon-5 p.m. Time(Sunday) 9:00 am - 2:00 pm LocationGaithersburg City Hall31 S Summit Ave, Gaithersburg, MD 20877