We offer a wide range of courses, mostly in twilight hours to minimise disruption to the school day. (inspirationtrust.org)
Overview: Manager on Duty during twilight hours responsible for ensuring guest satisfaction and safety. (jobhero.com)
However, if the sUAS has appropriate anti-collision lighting visible for at least 3 statute miles, the sUAS may operate during civil twilight hours. (nar.realtor)