3 random french/english questions. Moyen vs comme ci comme ça
English translation for imperative "Remember/ keep in mind..." (ie: Keep in mind the time difference) Is it "Reconnaissez le décalage horaire" / "Faites attention au décalage horaire"?

"Moyen" vs Comme ci comme ça. Is the word "Moyen" used as alternative to "comme ci comme ça." I heard that "comme ci comme ça is "old fashioned"

parfoir vs quelquefois. Which is more colloquial, which is formel?

Question

3 random french/english questions. Moyen vs comme ci comme ça
English translation for imperative "Remember/ keep in mind..." (ie: Keep in mind the time difference)  Is it "Reconnaissez le décalage horaire" / "Faites attention au décalage horaire"?

"Moyen" vs Comme ci comme ça. Is the word "Moyen" used as alternative to "comme ci comme ça."  I heard that "comme ci comme ça is "old fashioned"

parfoir vs quelquefois.  Which is more colloquial, which is formel?

Answer

English translation for imperative "Remember/ keep in mind..." (ie: Keep in mind the time difference) Is it "Reconnaissez le décalage horaire" / "Faites attention au décalage horaire"?

Remember / Keep in mind:
souviens-toi du décalage horaire; souvenez-vous du décalage horaire

You could also say:
n'oublie pas le décalage horaire; n'oubliez pas le décalage horaire

"Moyen" vs Comme ci comme ça:
The expression "comme ci, comme ça" is certainly not old-fashioned; use it confidently. The word "moyen" does not seem appropriate in this context.

parfois vs quelquefois:
Those two expressions are proper French, and they can be used interchangeably.