Today is the #DecemberSolstice - the #WinterSolstice and #firstdayofwinter in the Northern Hemisphere, and the #SummerSolstice and #firstdayofsummer in the Southern Hemisphere! 🥳 For those northerners longing for a little more vitamin D, there's nowhere to go but up: days will gradually get longer from now until June 20th, the first day of summer! #howseasonswork