I am a bit confused about the scoring, but it may be because I don't know how to move towns properly.
To move towns, don't you have to save the family to the board and then open them up again in another town? Then wouldn't the clock reset? Meaning that you'd start again on day 1, and the score is just the fourth world's time?
I am assuming I am wrong, so please let me know where my thinking has gone askew!