i do not see any more responses to this thread
i am currently using AHP v 3.240
i inspected the date table in the hw config and i can tell you the time jumps + 1 hour when we enter summertime and jumps back -1 hour when we enter winter time.
as far as i can see the cm15 should work on it's own without being connected to a pc.
this should probably mean that the rtc is not adjusted(otherwise there is no need for the +1 hour jump.
i do not know how this affects modules which turn on at a specific time but all dusk/dawn related timers should work.
DST will en next month overhere so i can tell you if it works within a month
i live in the netherlands fyi