not PEC
once up on the time
AM is midnight to 11:59 just before noon. PM is noon to 11:59 just before midnight.
Midnight to noon is 12 hours (AM), noon to midnight is another 12 hours (PM). Therefore, it is 12 hours from PM to AM.
It's neither, 12 noon and 12 midnight are just that although there are a lot of illiterates in positions where they should know better!)
it is pm. when it gets to noon, it is pm
12.45 in am pm time is 12:45 PM.
12 pm, 1 pm, 2 pm, 3 pm, 4 pm, 5 pm, 6 pm, 7 pm, 8 pm. 8 hours.
If using in a sentance, then yes, you use one space. If using to represent time, such as 3:00 PM, you would not use any spaces.
8 PM PST is 9 PM MST and 10 PM MDT.8 PM PDT is 8 PM MST and 9 PM MDT.
pm
pm
1:30 PM.