12:00 Noon, 2 days earlier.
Strictly speaking, there is no 1200 PM. There's 12 noon and 12 midnight. 12 noon is 1200 hours.
Noon
Three hours.
3:00 am
12 Noon
1200 is Military jargon for Noon and 2400 hours is actually 12:00 am (midnight)
Are we talking of 12 noon or 12 midnight. 'pm' means 'post meridian' (Latin) for 'afternoon'. If it is 12 noon it is neither before nor after noon , it is 12 NOON. A similarl argument holds for 12 midnight. 'am' are the Latin initials for 'ante meridian ' ; before noon'. In military time ; 12 noon is 1200 hrs. 12 midnight is NEVER used because of confusion over the date/day . The time of '0000' and '2400' is the same instant. So to avoid confusion the earliest/latest times used are 0001/2359 hrs respectively.
a.m is an abbreviation and means before noon ie before 1200 hours. It comes from the Latin words ante meridiem (translated into English it means before midday) p.m is an abbreviation and means after noon ie after 1200 hours. It comes from the Latin words post meridiem (translated into English it means after midday)
1200 NOON
Noon would be 1200 hours or 12:00.
There is no such time as 1200 am: there is 12 noon and 12 midnight. The question cannot, therefore, be answered.
1200 PM would be noon, or 12:00 in the afternoon.