What is the difference between 14 CFR 61.39(a)(6)(i) which states, "Has received and logged training time within 2 calendar months preceding the month of the application in preparation for the practical test", and 61.65(d)(2)(i) which states, "Three hours of instrument flight training from an authorized instructor in an airplane that is appropriate to the instrument-airplane rating within 2 calendar months before the date of the practical test"?
Namely, what is the difference between the language "preceding the month of" and "before the date of"? Is there any difference? (If not, why not use the same language?) It seems like 2 calendar months before the date of, say, March 15 could mean January 15. That would have a different meaning than 2 calendar months before March itself, which could mean anytime in January.
This is using a possible specific definition from Webster's for Calendar Months:
Definition of calendar month
1: one of the months as named in the calendar
2: the period from a day of one month to the corresponding day of the next month if such exists or if not to the last day of the next month (as from January 3 to February 3 or from January 31 to February 29)"
I realize I'm probably over thinking this, and guessing they mean the same thing, but it would be nice to know for sure. Asking because there have been reports at my school of a student that failed their oral exam because they didn't know the correct definition of "calendar month", and how it applies.
Apologies about any faux pas in this post, it's my first time!