Interfacing RTC with arduino becomes easier now. Techshop Presents Arduino RTC Shield. This shield features an on board DS1307 Real Time Clock IC with necessery circuitory and pinout for compatability with all Arduino boards. It has test LED (connected with Arduino 13 No Pin), Power LED & a Reset Button.
All you have to do is,just add a battery and start coding!
Note: Battery is not included with the package. You have to buy it seperately from here.