Originally Posted by evantec

There's a work-around you can do to (temporarily) tell the system to ignore the default settings for DST.

1) Press the SETUP button on the left, below the NAVI screen.

2) Press (4) at the top right to get to the 4th SETUP screen

3) Next to Adjust, press the button marked Time Zone / Clock.

4) You'll see the clock-adjustment screen with these settings:

Clock Adjustment (time appears, e.g. 21:30)

Auto Daylight Savings Time (ON) / OFF

Auto Time Zone by GPS (ON) / OFF

Time Adjustment Hour (+) (-)
Minute (+) (-)

RESET



So it looks like it's a matter of changing Auto Daylight Savings Time to be (OFF), and possibly altering the other settings (e.g. Auto Time Zone by GPS and/or adjusting the Hour).

You only need to keep the "patched" settings from March 11th (the new start of DST) until whenever DST would have otherwise started according to the NAVI system (March 25 or April 1st).

Then, on that day in late March / early April, you can go back to the default settings because the NAVI system will be in sync with the actual DST rules.