NZbeek:
Also (just making the most of the time difference) - instead of using watchdog which only allows an 8s sleep, would it be better using a real time clock to sleep it for the 1 hour? - assume this would be more energy efficient.(deleted stuff...)
Thanks all
if you want more than 8 seconds using the watchdog, you can use the code I wrote here:
http://forum.arduino.cc/index.php?topic=248263.msg1774201#msg1774201