antemeridian is AM; postmeridian is PM.
The acronym PM can mean post meridian, which is the time from noon until midnight, or it can mean prime minister.
AM: Ante Meridiem; PM: Post Meridiem
post meridem
They are latin abbreviations, ante meridiem (before midday) for a.m and post meridiem (after midday) for p.m.
Am = Ante meridian and Pm = post meridian
Tornadoes can form at any time of day or night. The time from 3 PM to 9 PM is the most common time for tornadoes to form.
2100
It is necessary to specify the hour when giving the time in that form.
8:22 pm
Yes. This is the time when they are most likely to occur. However, tornadoes can form at any time of day or night.
There's no way to tell from just PM. The time on the east coast is two hours later than mountain time