What is the meaning of "Once in a Blue Moon"? 🤔 A Blue Moon 🌑 refers to the second of two full moons 🌕 to fall within a single calendar month. According to Google the frequency of a blue moon is f=1.167×10-8 hertz thus converting to years: Once in Blue Moon 🌑 ~= 2.7 years
8th March 2019 Trust before you love. Know before you judge. Commit before you promise. Forgive before you forget. Appreciate before you regret.