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Thread: What does a Z suffix to a flight number mean?
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Old Mar 27, 2006 | 1:32 am
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Dave Noble
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Originally Posted by KenJohn
For a pleb like me what does UCT stand for even though I am now aware that it is equivalent to GMT.
It's not actually equivalent; they are different. UTC is based on atomic decay whilst GMT is based on apparant motion of the sun through the Prime Meridian at Greenwich

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