Add 45 minutes to 11:30 p.m.<br><br>
&bull; 11:30 p.m. + 30 min = 12:00 a.m. (midnight)<br>
&bull; 45 - 30 = 15 minutes remaining<br>
&bull; 12:00 a.m. + 15 min = 12:15 a.m.<br><br>
Final Answer: 12.15 a.m.