I've just purchased a Mini 0805 with GPS but cannot set my time zone. I have worked it out at the start of the settings where you can add 1 hr up to +12 or -12. I've worked it out that my time zone is 10 1/2 hrs. If I set it to +10, I'm 1/2 hr behind or if I set it +11 I'm 1/2 hr ahead. The only way I can get the correct time is setting it manually and turning off the GPS, which is pointless having GPS.