3/31/2024 0 Comments Time zones gmt![]() The Uniform Time Act of 1966 established the system of uniform daylight saving time throughout the US. Most areas of the United States and Canada observe daylight saving time (DST), the exceptions being Arizona (except for the Navajo, who do observe daylight saving time on tribal lands), Hawaii, and the overseas territories of American Samoa, Guam, the Northern Mariana Islands, Puerto Rico, and the United States Virgin Islands.Daylight saving time lasts for a total of 34 weeks (238 days) every year, about 65% of the entire year. ![]() and in fall they are moved back from 2:00 a.m. With a mnemonic word play referring to seasons, clocks "spring forward, fall back" - that is, in springtime the clocks are moved forward from 2:00 a.m. As a result, there is one 23-hour day in late winter or early spring and one 25-hour day in the autumn.ĭaylight saving time starts on the second Sunday in March and ends on the first Sunday in November, with the time changes taking place at 2:00 am local time. The typical implementation of DST is to set clocks forward by one hour in the spring (" spring forward") and set clocks back by one hour in autumn (" fall back") to return to standard time. ![]()
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