I don't know when there will be an International Dance Day, but most Saturdays from 3pm SLT- until, there is an INTERNATIONAL DANCE PARTY at Moonflower that sometimes lasts 24 or 48 hours depending on the crowd. Various DJs play a mixture of every kind of dance music from around the world you can imagine. You can IM DJ Angelsmoon Jewell for info and to get yourself on the guest list or the guest DJ list. It could become an SL International Dance day!