CountIF for dates

I need to count the number of treatments on a certain date (which is the number of times a certain date appears). Attached is a representative sample of my data. I think the problem lies in the fact that the data is in the format "1/3/2017 8:00:48 AM" but only shows in the cell "3-Jan". I'm currently using this formula:

=COUNTIF($F$3:$F$62, B4)

So, in the data I want to count how many times 3-Jan appears in Column F. and place this count in column C next to 3-Jan in column B (place count in cell C6). I've got a full year of data so ideally you use reference cells so that I don't have to manually type each date in CountIf Formula.

Thanks in advance guys,

Matt