MC Chamber Summer Hours Your Montgomery County Chamber of Commerce is operating under our Summer hours and will be open from 9:00 a.m. to 1:00 p.m. on Fridays. MC Chamber Summer Hours Set a Reminder Enter your email address below to receive a reminder message. Email address Select the amount of Days before the event -- Select Days Before Event -- 1 Day 2 Days 3 Days 1 Week Submit Date and Time Friday Jul 9, 2021 9:00 AM - 1:00 PM EDT Set a Reminder Enter your email address below to receive a reminder message. Email address Select the amount of Days before the event -- Select Days Before Event -- 1 Day 2 Days 3 Days 1 Week Submit Share × Print Email Add to Calendar Facebook Twitter LinkedIn Tell a Friend × Select Calendar Type × Google Yahoo iCal (Outlook, Apple, or other)