The correct option is D 18:00
It is given in the question that it is evening time. So we need to use PM.
So in option A, since they have given AM, it is wrong.
In option B, in a 24 hour clock we do not need to write AM or PM, and since AM is given here, it is clearly wrong.
So in option C, the time given is in the noon even if we have used PM, since the time is 12:30
Finally in option D, we have the right answer which is 18:00
which is (18:00-12)6:00 pm in the evening