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Free PSTAR practice Regulations – Canadian Airspace

‘Day’ in Canada is that period of time between

  1. Asunrise and sunset.
  2. Bone hour before sunrise and one hour after sunset.
  3. Cthe beginning of morning civil twilight and the end of evening civil twilight.Correct answer
  4. Dthe end of morning civil twilight and the beginning of evening civil twilight.

Why this is the answer

Per CAR 101.01, 'day' runs from the beginning of morning civil twilight to the end of evening civil twilight — the bright window bracketing sunrise and sunset. The plain sunrise-to-sunset answer is the common trap, since it omits civil twilight.

Reference

CARs 101.01 – Day TC AIM-GEN – Glossary of Aeronautical Terms

Question reproduced verbatim from Transport Canada’s PSTAR Study and Reference Guide (TP 11919E). The answer key is Transport Canada’s; the explanation is ours.

A study aid — not a substitute for the official guide, the CARs, or your instructor.

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