The first thing to do when setting up the Arduino Data Logging Shield board is to set the Time and date on the DS1307 RTC chip ( I notice Adafruit's board uses a different chip). After adding the DS1307 library search for this example and download to the Arduino board. In my case I've added the shield to an Arduno UNO. Note that the time data does not set correctly if you are using the Web based Arduino Create IDE (unless you are in the US). You have to use the locally installed Arduino IDE to correctly set the time and date data.
