Hi Erick and welcome!
With meteors showers, if in doubt, I always go to the IMO site here
http://www.imo.net/calendar, they are the last word in this sort of thing, if they cant get it right, than lord help us
on this page they have it as
'December 7 —17; Maximum: December 14, 10h45m UT'
here (scroll down page)
http://www.imo.net/calendar/2006/fall
being as we are in the far east we are 10 or so hours ahead of that time (depending where we live in this great land of course) and daylight saving, that makes their peak time around 9 pm-ish for us on the 14th, so the night evening of 14th/morning of 15th local time seems the go.
And seeing the waning moon rises that bit later on morning of 15th dec, thats the pick for sure.
Your right mate, with the Gem's the radiant rises just after 11 pm or so, for our latitude, unlike say the famous Leonids, which is one of the latest of all, radiant rise wise, rising at around 3 am (which is were the Very early morning/dawn thing/prerequisite comes from, partly) for our latitudes.
So midnight till 2 am looks nice eh - and the darker your site, the better with meteors dont forget. with the 31% illuminated moon rising not long after 2 am, still might be some nice action even with the moon up, ya never know in this pursuit!
specially if look at the sky in the opposite direction to the moon, or block it out with a tree or hill ect. that can work well sometimes, least you have some of your night vision left over?
HTH!