timer is not jsut hour-minutes-secondes , but a fulldate (with year, month and
day). I have no proof of this though it lead me to one conclusion:
i guess the day part is incremented sometime in the day , if power is plugged.
thus power should be on at this time to get the timer to know it shoudl wakeup
at 7PM today and not yesterday.
PS: i have a lot of evidence that this is just a crazy guess ... the internal
battery that should provide enough power for monthes , etc .
though i still believe there is an only way to be remove this option , testing
with letting power on on most obvious time for increment (12PM or 12AM or my
best bet)
Cheers
Alban