In article ,
Stubby wrote:

There is confusion in regard to which "twilight" times are used to
define night flying. What would be wrong with a change to the FARs that
say something like "Flight occuring an hour after GPS-indicated sunset
time and an hour before GPS-indicated sunrise is defined as night
flying"? (The standard exception for Alaska must be included...)

1) not everyone has GPS

2) why not use the sunrise/sunset times provided by US Naval Observatory?
(some means will need to be provided for those without internet access)

--
Bob Noel
no one likes an educated mule