What's Open and Closed on Patriots' Day in Belmont

Today is Patriots' Day (or Patriot's Day in Maine) commemorating the anniversary of the Battles of Lexington and Concord in 1775, the first battles of the American Revolutionary War.

The holiday was once celebrated on April 19 but now is observed on the third Monday in April. Today, April 15, is the earliest date in April that the holiday is a noted.

Today's big event is the running of the Boston Athletic Association's annual Marathon and the reenactments of the battles in Lexington and Concord as well as festivities in many town.

Patriots' Day is also one of the great quirky traditions in sports: Morning baseball as the Boston Red Sox have traditionally been scheduled to play at home in Fenway Park at 11 a.m., the only game in baseball that begins before noon. It is scheduled at this time so fans could see see the lead runners coming through nearby Kenmore Square.

What's closed and what's open today:

• Municipal and state offices: Closed, including the Belmont Municipal Light Department and all Town Hall offices.

    •  Trash pickup: Delayed by a day. Tomorrow, Tuesday, will be "Monday."

    •  Belmont schools: Closed for the week for April recess (Spring break).

• Belmont Public Library: Closed.

• The two Post Offices in Belmont: Open.

• MBTA: All subway lines operating on regular weekday schedule with added service before and after the Marathon. The Green Line's Copley Station is closed. Buses and trackless trolleys will operate on a Saturday schedule. Commuter rail trains will operate on regular weekday schedule. Visit www.mbta.com for more information.

• Retail stores: Most are open.

• Supermarkets, liquor stores and convenience stores: Open.

• Bars and restaurants: Open.