Definition of URL for English Language Learners. computers : the letters and symbols (such as http://www.Merriam-Webster.com) that are the address of a Web site.
The Uniform Time Act of 1966 provided standardization in the dates of beginning and end of daylight time in the U.S. but allowed for local exemptions from its observance. The act provided that daylight time begin on the last Sunday in April and end on the last Sunday in October, with the changeover to occur at 2 a.m. local time. During the energy crisis years, Congress enacted earlier starting dates for daylight time. In 1974, daylight time began on 6 January and in 1975 it began on 23 February. After those two years the starting date reverted to the last Sunday in April. In 1986, a law was passed that shifted the starting date of daylight time to the first Sunday in April, beginning in 1987.
If you're tired winter's dark afternoons, hold on just a little while longer. Daylight saving time 2017 will start on March 12 at 2 a.m. On March 11 before you go to bed, you'll need to set your clocks - assuming your digital time keepers don't handle it on their own - ahead by an hour. The switch means sunrise and sunset are about an hour later on March 12 than the day before, putting more daylight hours in the afternoon.