GMT stands for Greenwich Mean Time. GMT is sometimes called UTC, which stands for Coordinated Universal Time. It is the time that is correct for the longitude 0, which passes through Greenwich near London, independent of winter or summer. United Kingdom does not observe GMT during daylight saving time in the summer. Instead, in the UK, the time is one hour ahead of GMT. In aviation, pilots are required to speak with Air Traffic Control only in GMT, this eliminates confusion when airplanes from around the globe arrive at an international airport such as JFK, O’Hare, LAX, CDG (Paris), LHR (London) and more. This time zone is known by pilots as Zulu Time, Pilots are also required to talk in military format, that is, EAT 23:30 Zulu Time, which means 11:30 PM GMT, which in the winter is the same as in the UK but in the summer is one hour behind the UK.
Torgoen has several models with the GMT function, you can see these by clicking here. In a GMT watch the GMT hand makes one revolution every 24 hours rather than the normal 12 hours of a conventional hand. So a GMT hand pointing towards the digit 6, is actually showing the time at noon.
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