Reservations Private functions Take a virtual tour of our dining rooms.			Radius serves lunch Monday to Friday, and dinner Monday to Saturday. We are closed Sundays. Reservations are recommended. Hours Lunch m-f 11:30am to 2:30pm Dinner m-th 5:30pm to 10:00pm F-Sa 5:30pm to 11:00pm Reservations For general reservations, call 617.426.1234 or reserve online at OpenTable Credit cards accepted: American Express, Visa, MasterCard, Diner's Club, Discover Gift certificates available: Inquire at the restaurant, by telephone or email for information Also visit Radius's two sister restaurants in Boston: Via Matta and Great Bay.