[
  "To convert 24-hour to 12-hour: if the time is less than 1200, it is a.m. Use the hours as they are, dropping any leading zero.",
  "0310 is less than 1200, so it is a.m. Hours = 03 -> 3, minutes = 10. So 0310 = 3.10 a.m.",
  "Answer: 3.10 a.m. (option C)."
]