binary clock, displays minutes and hours

How to read the time?

Each row is binary coded, values 8,4,2,1 For eg value 5 led 4 and 1 is 
burning, 4+1 = 5. This way you can read every row, 

Normal 24 hr time is eg 13:54 

Row 3  ...x = 1

Row 2  ..xx = 2+1 = 3

Row 1  .x.x = 4+1 = 5

Row 0  .x.. = 4