setting date and time

time sets automatically from satellites. Only the offset to local can be changed.
Shaun, in New Zealand our local time offset is sometimes +13 hours due to NZ daylight saving time, but there is no facility to go to 13 hours on the LS, only a max of 12. At least that is the case with our windows software on the LS, we haven't gone to LINUX. Therefore our recorded times are always an hour out. Wondering if there is a solution?