Daylight Saving Time

Cook, Beth

Library of Congress. Congressional Research Service.

关键词: Time;    Science policy;    Calendar;   

RP-ID  :  R44411
RP-ID  :  R44411_2016Mar09

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report discusses Daylight Saving Time (DST), which is a period of the year between spring and fall when clocks in the United States are set one hour ahead of standard time. DST is currently observed in the United States from 2:00 a.m. on the second Sunday in March until 2:00 a.m. on the first Sunday in November.