Daylight savings time DST is used in the summer months in some regions. DST is 1 hour ahead of standard time. There is no consistency between regions as to when DST takes affect, or reverts back to standard real time. DST was never practical and will eventually be phased out obsolete. Standard Date Format Virtually the entire world formats time as Hours:Minutes:Seconds hours listed before minutes, minutes listed before seconds.
The date format Year-Month-Day has become widely accepted as a standard in many countries. TAI or International Atomic Time is a scale that helps determine the speed at which clocks should tick. It is found by combining the time of more than atomic clocks located worldwide. In other words, it's pretty accurate. UT1 or Universal Time is determined by the Earth's rotation. Because of that fact, it is also sometimes called astronomical or solar time.
It is what timekeepers use to measure the length of a single day on the planet. Thanks to these two elements UTC is used to synchronize clocks in various countries all over the world, across 24 different time zones. Universal Time was actually created during the Washington Meridian Conference held in This is when the idea of a hour time zone -- a concept we currently use -- came into fruition and became adopted widely.
UTC incorporates measurements of the Earth's rotation as well as averaged readings from around atomic clocks around the world, according to the website timeanddate. The U. Army, which divides up the Earth into time zones named after letters of the alphabet, refers to UTC as Zulu time , since it falls in the Z time zone, and Zulu is the code word for that letter in the International Radiotelephony Spelling Alphabet.
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