Following the spring change, local Michigan hospitals reported an increase of heart attacks by as much as 25 percent! Clearly he wasn’t being serious, but some people thought it was a good idea anyway.Īccording to studies conducted by hospitals, Daylight Saving Time’s hour change interrupts our circadian rhythms when we sleep and increases stress to the point where heart attacks are far more common than any other time during the year. To make people wake up earlier he suggested things like taxing people with shutters on their windows, rationing candles, and waking people up with ringing church bells or firing cannons. In the letter he claims that total of 64 million pounds of wax could be saved in the city of Paris if people woke up with the sun. While he did propose something along the lines of this idea, he was being satirical. The first time DST came up as an idea was in Benjamin Franklin’s 1784 letter entitled An Economical Project. Since this time zone is reserved for areas that observe DST, here are ten facts about this practice of changing the clocks twice a year that you may not have heard before. ![]() An example would be 0800T or “zero eight hundred Tango.” 11 Facts About Daylight Saving Time You Probably Didn’t Know The designation for this time zone is written in military time with “T” being used to show the time zone. It is most commonly used over the ocean between the longitudes of 112.5 degrees west and 97.5 degrees west. This UTC -7:00 time zone is utilized by military aviation. Arizona and the Mexican state of Sonora are the only two locations that don’t observe DST and therefore have MST time all year. Finally, there are five Mexican states that utilize this zone. Again in some of these cases, there are only specific areas that use the time zone. In Canada, there are five provinces that observe Mountain Standard Time and the DST variation. In many of these states however, it is specific locations which observe this time zone. There are actually thirteen states that observe MST during the winter and MDT in the summer. This time zone has areas that observe DST, at which times of year it is known as MDT. Before we move on, let’s examine several other time zones that also adhere to the offset of UTC -7:00: There is one Mexican State that uses PDT in the summer and PST in the winter. British Columbia - except for the eastern communities of Cranbrook, Golden, and Invermere which are in the MST/MDT zone.Idaho Panhandle - The region of Idaho north of the Salmon Riverįor Canada PDT is observed in the following locations:.Nevada - Legally, all of Nevada does, but the border town of West Wendover, and the towns of Jackpot, Jarbidge, Mountain City, and Owyhee all observe Mountain Time because of the proximity to and connections with nearby towns in Idaho.Oregon - all except for the majority of Malheur County on the Idaho border. ![]() Below are locations in each region where PDT is used during the summer months: The Pacific Time zone is used in several U.S. The three hours is added to the time since we’re moving upward in the offset from 7 hours to 4 subtracted from UTC. So, 10:00AM in PDT would be 1:00PM in EDT. Knowing this allows us to do a quick calculation, keeping in mind that we’re moving forward in time three hours since we’re moving up in the offsets. Since PDT is seven hours offset from UTC, we need to account for the three hours difference to EDT which is 4 hours offset from UTC. If you are looking to get your hands a little dirty, let’s try an example of converting from PDT to EDT, shall we? Understanding this distinction will help you better convert between time zones, but if you’d rather not do the math, you can also use our extremely helpful time zone converter to do the job for you. When the winter months arrive and the clocks are set back to their original time, the zone is then designated as Pacific Standard Time (PST).ĭuring the winter months when PST is in effect, the offset is UTC -8:00. During this time the offset for this time zone is UTC -7:00. During the summer, parts of the world, the United States mostly, observe Daylight Saving Time where the clocks are turned back an hour to allow for more sunlight during the summer months.
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