a. six-hour mark before midnight = 6:00 p.m. b. quarter hour following a = 6:15 p.m. c. seventeen minutes past b = 6:32 p.m. d. c plus 166 minutes = 9:18 p.m. e. d minus 7 quarter hours = 7:33 p.m. f. e plus a minute times 7 = 7:40 p.m. g. f rounded to nearest half-hour = 7:30 p.m. h. -g plus three half-hours = 9:00 p.m. on may 6 `` bingo ! ''