State Rep. Dave Rogers, a Democrat in the 24th Middlesex District made up of two precincts of Cambridge, five precincts of Arlington and all of Belmont, has an upcoming office hour in Cambridge from 4:30 to 5:30 p.m. Dec. 20 at Dunkin’, 2480 Massachusetts Ave., North Cambridge.

Office hours take place in Belmont on Dec. 10 and Dec. 13; and in Arlington on Dec. 17.

For information, call (617) 722-2637, send email here, or visit Room 544 in the State House in Boston.