When did the battles of Lexington and concord start?

The famous battles that began the American Revolutionary War, at Lexington and at Concord, began early in the morning of April 19, 1775. In Lexington at first light, colonial militia troops assembled and faced off with the advancing British soldiers. Dispersed quickly by British shots, the Americans met the British again at Concord later in the day, where the reinforced colonials drove back their enemy then harassed them during their long march back to Boston.