Actually Tac, it's 12hrs. 12hrs between country changes, and I think that's a reasonable time.
Another thing to consider, with this system, is that IMO it will promote a 2 front war in all 3 countries. Whichever country has the most bases at the time of the reset gets the points, not who causes the reset.
If the nits and bish push us rooks into the corner, like they like to do lately, and it looks like a reset is imminent, (and let's say the nits own half the map) the bish will have to hit the nits fast, before a reset can happen, and grab alot of bases. The nits, wanting to protect thier points for 'winning' will have to devote more attention to the bishes. It'll all balance out I think.