Offset UTC 0:00 hoursģ:30 am 03:30 MST (Mountain Standard Time) (Phoenix, AZ, USA). Offset UTC -4:00 hoursġ0:30 am 10:30 Greenwich Mean Time (GMT). Offset UTC -7:00 hoursĦ:30 am 06:30 Eastern Daylight Time (EDT). A year-round abundance of sunshine makes the practice unnecessary in these locations.Pacific Daylight Time is 3 hours behind Eastern Daylight Time and 7 hours behind Greenwich Mean Time and 0 hours ahead of MST (Mountain Standard Time)ģ:30 am 03:30 in PDT is 6:30 am 06:30 in EDT and is 10:30 am 10:30 in GMT and is 3:30 am 03:30 in Phoenix, AZ, USAīest time for a conference call or a meeting is between 8am-3pm in PST which corresponds to 11am-6pm in ESTīest time for a conference call or a meeting is between 8am-10am in PST which corresponds to 4pm-6pm in GMTīest time for a conference call or a meeting is between 8am-5pm in PST which corresponds to 9am-6pm in Phoenixģ:30 am 03:30 Pacific Daylight Time (PDT). Virgin Islands, that forgo DST for similar reasons to Hawaii. There are several U.S territories, including Puerto Rico, Guam, American Samoa and the U.S. Due to Hawaii's proximity to the equator, there is almost no difference in the amount of daylight during summer and winter, making the main advantage of DST redundant. Hawaii opted out of the provisions of the 1967 Uniform Time Act, and never observes DST, instead following Hawaii-Aleutian Standard Time. This is essentially to ensure that neighboring Navajo communities are on the same schedule and able to conduct business effectively.Ĭuriously, The Hopi Reservation, which is geographically surrounded by the Navajo Nation, sits entirely in Arizona and does not observe DST. The Navajo Nation, which stretches across four different states and covers a large area of northeastern Arizona, does observe DST. 'Springing forward' would mean the sun wouldn't set until after 9pm local time. The sun sets behind Estrella Mountain, west of Phoenix, Arizona. Additionally, any possible energy savings would be off-set by the increased use of air-conditioners and cooling systems throughout the day. Most people living in Arizona prefer to do their activities in the cooler evening hours, and DST would mean intense heat and sunshine late into the evening. The average spring temperature in the state is 90☏, while average summer temperatures can reach a staggering 112☏. Due to its scorching temperatures, DST in Arizona is widely considered to be counter-productive. Which states do not have Daylight Saving Time?Ĭurrently, only two states do not observe DST, Arizona and Hawaii.Īrizona permanently switched to Standard time in 1968. Most of the proposals have been unsuccessful. Since then, amid repeals, federal laws and exemptions, many states have proposed the idea of scrapping the practice, preferring to stick to Standard time or abide by DST permanently. in 1918 during WWI as a way to save energy. However not all states take part in this time change.ĭST was implemented in the U.S. That is until November when clocks go back once again. Daylight saving time (DST) goes into effect at 2am local time this Sunday, with clocks moving forward one hour, giving most Americans one less hour in bed but one more hour of sunshine to enjoy.
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