These were measured using the prime meridian – a designated boundary that divides the earth into east and west hemispheres and from which geographical longitude can be read. The next step was introducing globally uniform time zones. In 1893, the Time Act introduced Central European Time (CET) as the official time zone for the entire Empire. In the German Empire, each country still had its own time, which was usually oriented on the respective capital. geographic zones in which there is a uniform concept of time.ĭue to pressure from the railways, the USA and Canada decided to divide the continent into four time zones. Advances in technology, such as the introduction of railroads and the telegraph, have led to the demand for universal time zones – i.e. For many centuries, every location had its own local time, which was based on the sun. To understand what GMT time is, it is important to first understand the concept of time zones themselves. Initially, the GMT hand was linked to the hour hand, but the function of the watches became much simpler in the years that followed. The abbreviation GMT stands for Greenwich Mean Time, which used to be considered the official world time. In addition to the local time, the wearer can also set and view the time in another time zone. From its beginnings as an assistive tool for pilots and frequent fliers to its current status as a trendsetter with iconic designs, the GMT watch has had an eventful history.Ī GMT watch is commonly defined as a watch with a second time zone. GMT watches were originally developed for aviation in order to allow pilots to read two time zones from the dial of their watch with a single glance.
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