A run started at 9:15 a.m. If it ended at 4:11 p.m., then the run was half over at

9:15 to 4: 11   is 45 min + 11 min + 6 hr =   6 hr 56 min     

 

6 hr 56 min * 1/2 = 3 hr 28 min

 

added to  9:15 =   12 :43 PM