The dashed frame shows a clock as seen in a mirror. What was the actual time 50 minutes earlier?

The image shows 4:25, so the actual time is 11:60 - 4:25 = 7:35. Fifty minutes earlier it was 6:45. (3:35 subtracts from the image; 7:35 is the time now; 5:15 is the mirror image of 6:45.)