Macro to Clear contents in a range of cells when Date change.

Friends,

I have a work sheet and on that I have datas in A7:A50. I need to clear the contents in that cell when the date change. More clearly. I am using that column for Remarks and, if I wrote something on that column being used only for today. next day morning I want that columns to be cleared. Kindly provide me a Macro for the same.