Just so, can you say 12 pm?
Since it is the meridian, it is not technically correct to call it either AM (before the meridian) or PM (after the meridian). Technically, it is correct only to call it 12:00 noon. Likewise, the middle of the night is 12 o'clock midnight. It is not technically the end of the day or the beginning of the day, but both.
Secondly, is there anything like 12pm? 12am and 12pm are both incorrect. Neither should be used. You should really pay attention to the abbreviation. "a.m." means "ante meridiem" which means "before midday" and p.m. means "post meridiem", which means "after midday".
Keeping this in view, how do you say 12 pm in Spanish?
twelve p.m.
doce p.m. A phrase is a group of words commonly used together (e.g once upon a time). a. doce p.m.
How do you say 12 am in English?
That leaves 12:00 a.m. to be used for midnight at the beginning of the day, continuing to 12.01 a.m. that same day. However, because practical confusion is still possible, some style guides recommend replacing "12:00 p.m." with "12:00 noon" and "12:00 a.m." with "12:00 midnight".