The Winter Solstice arrives today at 4:48pm, and you can mark the arrival of winter with a good-ol’ fashion’ celebration in Sloatsburg this afternoon. The Friends of Harmony Hall – Jacob Sloat House are hosting the last sunset of fall at 4:31 followed by the arrival of the winter solstice 17 minutes later. This afternoon’s program runs from 4-6pm and features activities both outside and inside the 1848 mansion. There’ll be music, a celebration of the Ramapough Mountain Lenape, and refreshments. There’s a suggested donation of five dollars. For more information visit FOHH.org.