In reply #4 Veronica pointed out:
#include <time.h>
in Time.cpp should have a capital T.
This is the case ( ;)) in the DS1307RTC.h file also.
It took me way too long to figure out this was the problem.
Otherwise, great library. I've been using the old one since last June, and it's nice to have RTC support integrated.
Also I was really glad to see the default TIME_HEADER changed to 'T' instead of 255.
-transfinite