The time between the end of evening civil twilight and the start of morning civil sunrise is known as night. 14 CFR 61.109 refers to this term once more. As a result, a day is described as the time between the start of civil sunrise in the morning and the end of civil twilight in the evening.
According to my understanding, the FAA’s official accepted demarcation between daylight and night time is 14 CFR 1.1; however, it is not used as a standard when defining when night currency is applicable or when to use exterior aircraft lighting, primarily because ambient lighting at dusk and daybreak affects airman prowess during this time.

SEC

Share
Published by
SEC

Recent Posts

GVWR Class List

Federal Highway Administration GVWR Class Identification Find your vehicle's GVWR by decoding the vin. Class…

2 years ago

China CMIIT ID

China CMIIT ID is required for all wireless devices (cellular phones, modems, routers, etc.) imported…

2 years ago

Singapore Radio Type Approval (IMDA)

Singapore Radio Type Approval (IMDA) is a technical specification and compliance process for radio communications…

2 years ago

Waioder Meaning

Waioder Definition is not a meaningful term in any of the languages, and it isn't…

3 years ago

MNPI – Acronym Meaning

MNPI stands for Material Non-Public Information. Material information is accurate information that is not commonly…

3 years ago

Alien

US law defines “the alien” as “anyone who is not a US citizen,” and in…

3 years ago