CDT

CDT
Tags: Acronym
CDT is a FAA Acronym for: Controlled Departure Time ...

CDT PROGRAMS-
(See CONTROLLED DEPARTURE TIME PROGRAMS.)
CEILING- The heights above the earth's surface of the lowest layer of clouds or obscuring phenomena that is reported as "broken," "overcast," or "obscuration, ...

This is not a clearance void time A CDT is an ATC procedure to reduce traffic congestion. It is a reservation that may or may not come on time.