How is night considered in Canada at locations where the sun rises and sets daily?

In Canada, the definition of night is specifically related to civil twilight, which is the period when the sun is just below the horizon, and there is still some natural light present. The correct answer refers to the time from the end of evening civil twilight to the start of morning civil twilight. This definition is important for pilots because it marks the transition period between daylight operations and night operations, requiring different lighting and regulatory considerations.

During civil twilight, there is enough residual light for outdoor activities without additional artificial lighting, but it still is not completely bright as in daylight. Understanding this definition helps pilots plan their flights, considering the limitations on visibility and the necessity for appropriate lighting on the aircraft during nighttime operations. The terms "dusk," "dawn," and various definitions of night can vary in interpretation, but defining night based on civil twilight provides a clear and standardized operational guideline for pilots in Canada.