I was in same situation with a magellan roadmate 1212. From what I can tell, the "daylight savings" is not what many of us may be accustomed to... that is, that it means that the location you are at follows daylight savings as happens with Windows or many other devices.
I bet those in Arizona never had a problem becuase they don't follow time zone... let me explain....
The daylight savings seems to state "are we currently under daylight savings time?" if we say yes (as you would normally state in your Windows computer setting (that would determine when daylight starts and stops and adjust pc time accordingly), the magellan 1212 instead will "ADD" one hour to the time stated by the Satellites regardless on whether it is summer ... or not.
So, if you happen to live in a time zone that follows "daylight savings" and you currently are under "daylight savings" time, then set it so in the "time zone".
So, there are two things you have to do:
/menu/user options/system settings/time zone/
1)Set your time zone
2)If currently under Set/unset the daylight savings set button to yes and manually move to no when not on DLS.
The explanation I found in MagellanGPS website is below, but never mentions what is the meaning (I should say effect) of the "daylight savings" button checkmark.
Magellan GPS receivers are not able to set the Time manually. In order
to have the correct time set on your Magellan GPS receiver, you must
set the proper time zone you are located in (ie Pacific, Central or
Eastern). Once the time zone is set the exact hour and minute will
display as information is received from the satellites. The following
information will assist you on setting the time zone on your Magellan
For Outdoor Triton series 200, 300, 400, 500, 1500 and 2000
- From the map screen press Menu and select View
- Select profiles and press Enter
- Select hiking and press Enter
- Press the Page/Go To key once and scroll down to select time zone
- Press Enter to select your time zone and Enter again to confirm.
- Press ESC repeatedly until you return to the map screen.
Note: Make sure Daylight Savings is adjusted accordingly.
For Vehicle Navigation series Maestro and RoadMate 1200-1430
- From the map screen select Menu
- Select User Options
- Select System Settings
- Select Time Zone
Note: Make sure Daylight Savings is adjusted accordingly