i don't know the answer but i hope this could help. The earth is divided into 24 time zones. Each zone is 15 degrees longitude in width and observes a clock time one hour earlier than the zone immediately to the east
12am is midnight. 12pm is noon.
It is noon when both the clock's hands are on twelve and the sun is overhead.
Twelve O'clock Noon
On a formal invitation, you would write "12:00 p.m." or simply "12:00 noon" to indicate twelve noon. It is best to avoid using "12:00 AM" or "12:00 PM," as they can be confusing. For added clarity and formality, you might also consider spelling it out as "twelve o'clock in the afternoon."
high noon, noon, noonday, noontide, noontime, twelve noon
noon
Noon.
11:48 am
12:10 (twelve ten)
Her husband had died at noon after sobbing twelve times.
On the same day it is 12 hours
Twelve noon is 12:00 PM. It is the middle of the day when the sun reaches its highest point in the sky.