I'm a court reporter and can't move words around. Writing out "Three o'clock" at the beginning of a sentence is a given. What to do when the time is 3:01? And the zero creates an additional question.
Q. What time did you get to the store?
A. Three oh one.
A. Three zero one. (Can't do this. It's not verbatim.)
A general rule would be appreciated. My reference book has the easy answers, but this rule is not addressed. Couldn't find anything online.