The Eastern Time Zone contains 17 states in the eastern part of the Continental United States and is shared by parts of Canada and three countries in South America. These places use Eastern Standard Time (EST) when observing standard time (autumn/winter) - which is 5 hours behind Coordinated Universal Time (UTC−05) - and Eastern Daylight Time (EDT) when observing daylight saving time (spring/summer) - which is 4 hours behind (UTC−04). On the second Sunday in March, at 2:00 am EST, clocks are advanced to 3:00 am EDT leaving a one hour gap. On the first Sunday in November, at 2:00 am EDT, clocks are moved back to 1:00 am EST.

The 1966 Uniform Time Act in the United States meant that EDT was instituted on the last Sunday in April, starting in 1966. EST would be re-instituted on the last Sunday in October. The act was amended to make the first Sunday in April the beginning of EDT as of 1987. The Energy Policy Act of 2005 extended daylight saving time in the United States beginning in 2007, so that the local time changes at 2:00 am EST to 3:00 am EDT on the second Sunday in March and returns at 2:00 am EDT to 1:00 am EST on the first Sunday in November. In Canada, the time changes as it does in the United States.

Don Drummond (12 March 1932 – 6 May 1969) was a Jamaican ska trombonist and composer. He was one of the original members of The Skatalites, and composed many of their tunes.

Drummond was born at the Jubilee Hospital in Kingston, Jamaica to Doris Monroe and Uriah Drummond. He was educated at Kingston's Alpha Boys School, where he later taught his younger schoolmate Rico Rodriguez to play the trombone.

His musical career began in 1950 with the Eric Dean's All-Stars. He continued into the 1960s with others, including Kenny Williams.

With the birth of ska Don joined The Skatalites. With Drummond's politicized conversion to the Rastafari movement, other band members followed his lead. He became a household name in Jamaica, before suffering mental problems. He was rated by pianist George Shearing to be amongst the world's top five trombone players.

In 1965 he was convicted of the murder of his longtime girlfriend, Anita "Marguerita" Mahfood, an exotic rhumba dancer and singer, on 1 January 1965. He was imprisoned at Belle Vue Asylum, Kingston where he remained until his death four years later. The official cause of death was "natural causes", possibly heart failure caused by malnutrition or improper medication, but other theories were put forward; some of his colleagues believed it was a government plot against the Kingston musical scene, and some believed that he was killed by gangsters as revenge for the murder of Mahfood.