Ever opened a bottle you love and found it… quiet? Maybe it was a Root Day. Biodynamic winemakers have long followed the Moon. As it moves through the constellations, every day falls into one of four types. Many sommeliers, retailers and critics schedule tastings around them. Fruit Day follows Maria Thun's calendar to the hour, telling you which day you're in right now and exactly when it changes. THE GOOD DAYS FRUIT DAY: the best. Wine is at its most expressive. Open the bottle you've been…