Which condition is NOT considered a part of Visual Flight Rules?

Visual Flight Rules (VFR) are regulations under which a pilot operates an aircraft in weather conditions generally clear enough to allow the pilot to see where the aircraft is going. The core principle of VFR is that pilots must have visual reference to the ground and other landmarks for navigation and control, which are crucial for flying safely under these rules.

Nighttime flying is a condition that typically does not meet the criteria for VFR. While pilots can fly VFR at night, they must have additional qualifications and the ability to navigate and ensure visibility using instruments and lights since natural visual references can be limited after dark. This is different from flying during the day, when conditions like clear skies and good visibility enhance a pilot’s ability to maintain visual reference and operate under VFR.

In contrast, clear skies, good visibility, and daylight hours are all conditions that support VFR operations. These conditions enable pilots to see the terrain and other aircraft around them, which is crucial for safety in VFR operations. Therefore, nighttime flying stands out as the condition that is typically not considered a component of Visual Flight Rules without additional equipment and training.