Why don't appointment times show on my iCloud Calendar
It sounds like you may not have your views set to see the items, or that you have the view in MONTH, and the screen is just too small to show them as a 'boxed' houly appointment. 
Try enabling all the calendars, or at least the calendar you use, and then check the list or Day view, and see if they show up. 

If this is the wrong Idea, can you submit a screen shot of what you see?