Questions tagged [clock]

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Is there any reason to use only UTC standard time in aircraft and not GMT?

Why are we not using the GMT time standard in an aircraft? Why is only UTC the standard on-board?
20
votes
4answers
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Why is a clock necessary for IFR?

According to FAR 91.205 (d)(6), one instrument required for IFR is: A clock displaying hours, minutes, and seconds with a sweep-second pointer or digital presentation. Why is it necessary to ...