How many of these displays read exactly the same in their reflection in a pond?

In water each digit is turned upside down in place: 0, 3 and 8 do not change, but 2 and 5 swap shapes. 30:08, 83:38 and 03:80 use only 0, 3 and 8, so they are unchanged; 22:55 reads 55:22. So 3 displays.