![]() Changes in "clock-time" are done abruptly in 1h steps around the globe according to the position of the country, avoiding having millions of time zones with very small differences between them. The world time zones try to group areas with the same solar time and give them a common date and time. In an attempt to organize this difference while still keeping a certain relation between the date and time with the position of the sun in the sky, the time zones were born. In reality, the Earth is round, which means that the position of the sun at a given time depends on our position on the Earth. From this, one could tell the time by just looking at the sun and its position in the sky. The movement of the sun in the sky is periodic, so a complete rotation of the sun (in reality, this movement is due to the Earth spinning and not the sun moving) takes what we call a day by dividing that period of time by 24, we get hours. The date was more or less given by the apparent movement of the stars in the sky, whilst the time was taken by looking at the sun. Historically, the way we humans have kept track of the date and time has been by looking at the sky. However, that leads to the question of how do you define a day. Another way of timekeeping could be counting days instead of seconds, like what you can do with the day counter. Computers deal with time using what is called Unix time or epoch time, which basically means counting seconds from a fixed date and time, as we have explained in depth in the Unix time converter. There are many ways in which we can keep track of time. It is still observed by astronomers.Many might be asking this question, and we think it's important to answer it to at least make a point for the use of the time zones converter. Solar methods of telling time became obsolete when technology afforded us more accurate options. It is written as 0:00, set at the zero point of the time zones. It is unique in that it has no offset from UTC. Other notable cities in this zone include Abidjan, Dakar, Grand Dakar, and Accra. The largest city in this zone is London in the United Kingdom. It was based on the solar time established at the Greenwich Royal Observatory. Originally, before Coordinated Universal Time (UTC) was implemented, this was where the time standard was located. Yet another area rife with historical significance, this time zone represents the place where the concept was born. The southern location have a tropical climate that makes them major tourist destinations, while the northern areas have major cities and significant snowfall. It is classified as a temperate humid climate that enjoys hot summers and winters that range from cool to very cold. The range of climate within the locations here is staggering. It was this colonies that would go on to wage war against the British to gain independence and bring about the nation that occupies this continent today. For example, the original thirteen colonies of the United States were all located within this zone on the east coast of the continent. There is a great deal of history in this part of the world. ![]() On a global map, the Greenwich time zone is located at zero degree longitude and the Eastern time zone is located at 75 degrees west. ![]() Geographically, this is located on the Eastern coast of the North American continent, but it also extends down into the Caribbean and up into Canada. During the summer months, the time change results in a four hour difference between the two since the Eastern zone moves an hour forward in the spring. If it is 12 A.M in Eastern Standard Time, then it will be 5 A.M in Greenwich Mean Time. The former is UTC -5:00 while the latter is UTC 0:00, it is where the prime meridian is located and represents the zero-point from which the other zones are drawn. When converting from EST to GMT, there is a five hour difference. The Atlantic ocean separates these two time zones. We also provide you with a chart the showcases conversions for each hour across both zones to help you quickly convert any and all times you may need.ĭuring the winter and spring months, the standard Eastern zone is observed on the east coast of America, but during the summer months, it changes to EDT to observe the time change. This page is designed to provide you with up-to-date clocks that accurately portray the difference between Eastern Standard Time and Greenwich Mean Time at the current moment in the day. ![]()
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