DS1307 Real time clock on breadboard

Forum 2005-2010 (read only) General Exhibition
11

I tried to set the year of DS1307 with #include <DS1307.h>
till 2012 its OK
but e.g.

RTC.set(DS1307_YR,13);
or RTC.set(DS1307_YR,98);
dont work.
or date 31

what is the problem ?