Definition of Civil Twilight in Alaska
Verified from official sources14 CFR § 107.29Version 1Effective -Verified 22 August 2026
In plain language
If you are flying in Alaska, civil twilight is not a fixed 30-minute period; instead, you must use the definition provided in the Air Almanac.
Requirement as structured
In Alaska, civil twilight is defined as the period of civil twilight specified in the Air Almanac.
Original regulatory text
In Alaska, the period of civil twilight as defined in the Air Almanac.
Applies when
- country
- United States
- environment
- alaska
- regulatory category
- General