JB writes:

What ARE you rambling about? Go look up the definition of IMC and
VMC. Its not about weather or day or night. Its about flying by
instrument or visual reference.

No. VMC and IMC define the weather conditions of flight. VFR and IFR define
the governing rules of flight. IMC normally mandates IFR, but in VMC either
VFR or IFR can be used.

The distinction between IMC and VMC is unrelated to time of day. You can be
in VMC at any time of day or night; the same is true for IMC.

Flying at night provides you with fewer visual cues than flying during the
day, even when it's VMC. This is why it might be a useful compromise between
attempting to fly IFR in VMC during the day, and flying IFR in IMC.

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