git log --since --until

Hi all,

I need to write sort of a report listing what we worked on (month by
month) over the last year. Yippie. ;-)

Luckily most of the information I can get from our Git logs but I
noticed some "anomalies". The quotes are there because I do understand
(or I think I do anyway) why those "anomalies" are there.

As an example, I ran (on master)

git log --since="01-Dec-2011" --until="31-Dec-2011"

The returned list of commits also included a few from November. I'm
guessing that's because --since and --until simply determine a start
commit and an end commit in master and any commit that falls in that
range is included, whether its actual commit date is in the originally
specified date range or not.

Is there a way to just get the commits made in December? (I can
manually go through the list, of course, [and that's probably what
I'll do] but playing with Git is more fun than writing a report. ;-) )

Cheers,
Hilco