If you want to serve these for breakfast or an early brunch, instead of refrigerating for 1½ hours and then freezing for 30 minutes, just refrigerate overnight (no need to freeze).
Some ovens bake the bottoms darker than others; place a second pan under prepared pan when baking to prevent overbrowning. Not sure how your oven will bake? Test with one Danish on a prepared pan or go ahead and double up on pans just to be safe.
Reheat stored Danish in a 350°F (180°C) oven before eating.