What is MCT?
Morning Civil Twilight
The center of the sun is 6 degrees below the horizon
VFR cannot happen before this.
What is ECT?
Evening Civil Twighlight
The center of the sun is 6 degrees below horizon.
VFR can not happen AFTER this
What is the effect on Altitude of daylight hours?
Legally - it does not matter. BUT at altitude the sky is lighter and as you descend it gets darker. A bigger risk in the south island.
Where can a pilot find the information needed to confirm local ECT?
AIP Volume 4
Tropical regions have
_________
twilight periods than higher latitudes regions.
Shorter