day-light saving times

daylight-saving time

the civil time observed when daylight saving is adopted in a country or community.
Also, daylight-savings time.

1905–10 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
daylight-saving time
See also British Summer Time Also called (in the US): daylight time time set usually one hour ahead of the local standard time, widely adopted in the summer to provide extra daylight in the evening

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Science Dictionary
daylight-saving time   (dā'līt-sā'vĭng)  Pronunciation Key 
Time during which clocks are set one hour or more ahead of standard time to provide more daylight at the end of the working day during late spring, summer, and early fall. First proposed by Benjamin Franklin, daylight saving time was instituted in various countries during both world wars in the 20th century and was made permanent in most of the United States beginning in 1973. Arizona, Hawaii, most of eastern Indiana, and certain US territories and possessions do not observe daylight saving time.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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