![]() In military GMT is known as Zulu time.Greenwich Mean Time was the same as Universal Time (UT), until the introduction of UTC in 1972 a standard astronomical concept used in many technical fields. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use for the most parts it is the same. Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. Other major cities in the area are Abidjan, Dakar, Grand Dakar, Accra Daylight Saving Time: This time zone changed to daylight saving time (DST) at 1:00 AM on Sunday. Principal Cities: The largest city in the GMT timezone is London from United Kingdom with population about 7.557 million people. Search for a city to find the local time. Offset: GMT is 0 hours ahead Greenwich Mean Time (GMT) and is used in EuropeĬountries: It is used in following countries: Burkina Faso, Côte d'Ivoire, Britain (UK), Guernsey, Ghana, Greenland, Gambia, Guinea, Guinea-Bissau, Ireland, Isle of Man, Iceland, Jersey, Liberia, Mali, Mauritania, St Helena, Sierra Leone, Senegal, Sao Tome & Principe, Togo Offset UTC +5:30 hoursġ0:30 am 10:30 BST (British Summer Time) (London, United Kingdom). Offset UTC 0:00 hoursģ:00 pm 15:00 India Standard Time (IST). ![]() And exactly on the opposite side of the globe is Greenwich, so consequently the time UTC+0 was set.Greenwich Mean Time is 5 hours and 30 minutes behind India Standard Time and 1 hours behind BST (British Summer Time)ĩ:30 am 09:30 in GMT is 3:00 pm 15:00 in IST and is 10:30 am 10:30 in London, United Kingdomīest time for a conference call or a meeting is between 8am-12:30pm in GMT which corresponds to 1:30pm-6pm in ISTīest time for a conference call or a meeting is between 8am-5pm in GMT which corresponds to 9am-6pm in Londonĩ:30 am 09:30 Greenwich Mean Time (GMT). This line was found in the Pacific Ocean between Russia and Alaska. Best time for a conference call or a meeting is between 9am-6pm in CEST which corresponds to 8am-5pm in London. ![]() 2:30 am in CEST is 1:30 am in London, United Kingdom and is 8:30 am in PHT. Even if, Great Britain was a famous seafaring nation and well-known for its navigation, it is however only coincidence that Greenwich of all places is the zero point of the today's time calculation.įor the dateline, a north-south line on the globe was searched for, which was as far away as possible from any civilization. Central European Summer Time is 1 hour ahead of BST (British Summer Time) and 6 hours behind Philippine Time. Greenwich is a suburb of London through which the prime meridian passes. Only in 1972 it was renamed into the Coordinated Universal Time (UTC). Establishment of Greenwich Mean Time Since the late 19th century, Greenwich Mean Time has been the universal time. From 1968 to 1971, the country even kept UTC+1 time all year round. Several experiments with the extension of summer time followed. The longer daylight hours in the evening allow for more outdoor activities and should reduce energy consumption. the time was changed 2 hours forward in summer. During the Second World War, there was even a "British Double Summer Time" in Great Britain, i.e. Daylight saving time was first introduced in 1916, but at that time there was initially a changeover in four steps of 20 minutes each. It goes back to GMT standard time on the last Sunday in October. UTC is also sometimes called Z or Zulu time. Daylight saving time in the United Kingdom The changeover to British Summer Time occurs, as it does throughout Europe, on the last Sunday in March, when clocks are advanced by one hour, making evenings longer and taking advantage of natural daylight. UTC used to be called GMT (Greenwich Mean Time), after the Royal Observatory located in the Greenwich area of London. These times also apply in the United Kingdom dependent territories of Jersey, Guernsey and the Isle of Man, but not in Gibraltar, where Central European Time is observed due to relations with Spain. However, during the summer months, people switch to British Summer Time (BST), which corresponds to UTC+1:00. GMT corresponds to Coordinated Universal Time (UTC+0:00), which is the worldwide reference for timekeeping. ![]() Throughout the United Kingdom, a single time zone, Greenwich Mean Time (GMT), applies during the winter months. Only 1 nationwide time zone Standard time:
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