Quote Originally Posted by ReflectiveAcuity View Post
Okay, thanks guys. Still a bit confused by this. So different formats work? Uppercase letters without the periods, or lower case letters with periods? I guess what is consistent is a space between the digits and "AM/PM"?
In British English having full stops after initials is considered old-fashioned so it's more likely to be written 7:45 am. So maybe if you've seen it that way it was in a British book. Having am in capitals looks odd to me but not wrong as such. Having full stops in there looks old fashioned and/or American.