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Live time zone map2/20/2024 ![]() Nepal, the final holdout, did not adopt a standard offset of UTC until 1956, and even then, has a less common offset of UTC+5:45. It wasn't until 1929 before most countries adopted hourly time zones. ![]() Time zones throughout the world vary, and used to vary even more than they currently do. Most commonly, UTC is offset by an hour, but in some cases, the offset can be a half-hour or quarter-hour, such as in the case of UTC+06:30 and UTC+12:45. UTC offset can range from UTC-12:00 to UTC+14:00. Generally, time zones are defined as + or - an integer number of hours in relation to UTC for example, UTC-05:00, UTC+08:00, and so on. ![]() UTC breaks time into days, hours, minutes, and seconds, where days are usually defined in terms of the Gregorian calendar. ![]() Most time zones that are on land are offset from UTC. UTC is not dependent on daylight saving time (DST), though some countries switch between time zones during their DST period, such as the United Kingdom using British Summer Time in the summer months. UTC, which is based on highly precise atomic clocks and the Earth's rotation, is the new standard of today. Although GMT used to be a time standard, it is now mainly used as the time zone for certain countries in Africa and Western Europe. Although GMT and Coordinated Universal Time (UTC) essentially reflect the same time, GMT is a time zone, while UTC is a time standard that is used as a basis for civil time and time zones worldwide. Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory located in Greenwich, London, considered to be located at a longitude of zero degrees. They are often based on the boundaries of countries or lines of longitude. It said the original five time zones have expanded to nine.Related Time Calculator | Date CalculatorĪ time zone is a region on Earth that uses a uniform time. The inspector general report said the Transportation Department is responsible for keeping the clock because of the importance of time to travel. The department’s top lawyer, John Putnam, responded in a memo that officials are fixing the issues and are “developing an official DOT time zone map.” Inspector general investigators presented the findings to the Department of Transportation. “The official boundaries are narratively described with various types of coordinates and geographic features such as lines of longitude, State or county lines, and rivers,” the report stated. For example, one map incorrectly identifies a deviation in Nevada: “Elko County, NV is shown as the location that changed time zones rather than the correct location, the city of West Wendover.” Investigators found no single map accurately showing the boundaries nationwide and said several sources of time information on the DOT website contained errors, such as inaccurately noting the time practices in some localities. The issue came up, the inspector general’s office said, after the US Senate passed legislation this year to end the biannual time turn by making Daylight Saving Time permanent. A person may take knowing the local time for granted, but an official review revealed that there is no single, accurate map showing the nation’s time zones and local observance of Daylight Saving Time.įederal transportation officials are now at work creating an accurate map of the nation’s time zones, according to a report by the inspector general for the Department of Transportation.
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