Departure times are always correct for the local time in the place you are departing from. Arrival times are always correct in the local time where you are arriving. Always. Including changes for daylight savings time.
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Scientists synchronized two highly accurate atomic clocks and then flew one around the Earth aboard an airplane. When the airborne clock returned to Earth, it was a tiny fraction of a second behind the one that remained on the ground. A thought experiment using a light clock reveals why this is so.
The 40:1 surface is calculated out to 22.09 nautical miles from the runway end within an arc of 180° centered along the runway centerline extended. These requirements are part of FAR Part 77.23(a)(3). This is TERPS criteria. The standard aircraft departure climb gradient (CG) is 200 feet per nautical mile.
(1) A rest required under paragraph (b)(1) of this section may be scheduled for or reduced to a minimum of 8 hours if the flight crewmember is given a rest period of at least 10 hours that must begin no later than 24 hours after the commencement of the reduced rest period.
The general guideline on how early to get to the airport for a domestic flight is 2 hours. However, those traveling at a very busy time of year or out of a large airport might want to allow more time.
Is 45 minutes before flight enough time? You will not be allowed to board once the doors close. To check in and also check bags, you must do so at least 45 minutes ahead of your flight for flights within the U.S., and within an hour for international flights.
No.As a retired flight attendant I saw no major difference in the aging process between my colleagues and the general population. The cabin of an aircraft does have far less humidity than normal ambient air, which *might* temporarily make lines very slightly more pronounced.
The accuracy of the arrival time varies; it's generally better at a major airport (often within a minute) than out in the boonies (can be ~15 minutes off). You can check the altitude in the tracklog to get an idea of how reasonable the arrival time is.
They explained: There is very little we can actually do to 'make-up time'. The longer the flight, the more we can do, but still, we're talking 5-10 minutes, not an hour. To make up time, pilots can try to use wind speed by maximising tailwinds as well as request direct routings or shortcuts.