Is 12 am morning?
12 a.m. is midnight. It is the point at which one day finishes and the next day starts, so 12:01 a.m. is technically morning time in contexts where morning is defined as the first 12 hours of the day.
You can say “12 a.m. midnight” or just “12 midnight” for clarity when making arrangements.
What time is morning can depend on context (e.g., 2:30 a.m. may be considered morning for a shift worker beginning an early shift but nighttime for someone who went to bed at midnight and has been woken up by a thunderstorm).
QuillBot’s free Paraphraser can help you find synonyms for time expressions such as “midnight” and “nighttime.”