@JeremyECrawford When it says you may end concentration at "any time", is that only during your turn, or during any turn?

— Anthony Edmonds (@LairoftheRaven) May 9, 2016

You can, indeed, end your concentration at any time, not just during your turn. #DnD https://t.co/sWa0axDAbq

— Jeremy Crawford (@JeremyECrawford) May 9, 2016