![]() law they are:Ĭonnecticut, Delaware, District of Columbia, Georgia, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Vermont, Virginia, West Virginia Partially: Florida, Indiana, Kentucky, Michigan, Tennessee No DST observed, not defined by 15 U.S.C. ![]() The United States of America and its surrounding areas use 9 standard time zones. Also, these abbreviations can be the same as those used in other parts of the world for different time zones. ![]() The shorter abbreviations we often use are just for convenience and are not official. The official names of the time zones are what's used in laws and official documents. Before this, they were based on the solar time at different longitudes west of Greenwich, UK. Since August 9, 2007, these time zones are defined by how many hours they are ahead of or behind Coordinated Universal Time (UTC). The Secretary of Transportation has the power to decide which time zones different regions will use and whether they'll follow daylight saving time. This law decides when daylight saving time starts and ends, if it's used. In the United States, standard time zones and the rules for daylight saving time are set by federal law (15 USC §260). United States Maps in our Store - Order High Resolution Vector and Raster Files It is the mix of the time zone and DST rules, along with the timekeeping services, which calculate the legal civil time for any United States location at any moment. The clocks managed by these services are kept in synchronization with each other as well as with those of other internationally recognized timekeeping organizations. Official and extremely precise timekeeping services (clocks) are presented by 2 federal agencies: NIST (the National Institute of Standards and Technology) (an agency of the Department of Commerce) and UNSO (the United States Naval Observatory). The time zone boundaries and daylight saving time observance are organized by the Department of Transportation. observing DST (daylight saving time) for generally the spring, summer, and fall months. UTC offsets in diagonally striped areas are not whole hours.Explore US time zone map, Time in the United States of America, by law, is divided into 9 standard time zones covering the American states, territories and other U.S. Find the current time offset – displayed in whole hours only – from Coordinated Universal Time (UTC) at the bottom of the map.Hover your mouse over the map to highlight time zones.Click on any red dot and go to that city's page with time, weather, sunrise/set, moon phases and lots more.“DST” is displayed if there is Daylight Saving Time at the moment. Hover your mouse over any of the red dots to see the name of the city and country and current local time. ![]() To remove the pins permanently (undo not possible), simply click here or on the Time Zone Map link in the menu above.If you place more than one pin, an extra line of information is added underneath the map with links to those cities' pages. Search for any city in the search field above and place a black "pin" by that city on the map.Please note that the Time Zone Map is not a political map but a time zone map showing the time zone boundaries. Future changes are usually incorporated into our database before they take effect, so the map accurately reflects the current situation. Business Date to Date (exclude holidays)Īll clock changes worldwide are automatically taken into account and displayed in real-time as soon as you reload the page.
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