00685nam a22001457a 450000500170000000800410001702000180005804000100007610000200008624500310010626000340013730000140017152003450018552600090053020210625011649.0210625b           ||||| |||| 00| 0 eng d  a9780545327060  cGSLRC  aAdler, David A.  aTime zones /cDavid Adler.  aNew York :bScholastic.c2010  a32 pages.  aWhat are time zones and why do they exist? When it's noon where you live, why is it midnight halfway around the world? This entertaining book explains why time zones exist and includes little-known facts and historical lore, an explanation of Daylight Savings Time, and a hands-on activity that can be performed at home or in the classroom.  c920L