Dial up connection under Debian (and chrony)

[Bob Alexander <bob@ngi.it>]

Dear friends,
when traveling I have a GPRS/EDGE card that I use to dial-up a ppp 
connection (writing from this now).

They way I have setup is that I just type:

sudo wvdial

and the connections takes place.

Now I have tried installing the chrony package in hope of synching the 
correct daylight savings time here in Italy (DST or CET+1) but am not 
getting the clock updated.

I tried reading through the doc and it says something about being ppp 
aware but could not quite figure out if I am starting the ppp connection 
in a proper way.

BTW I am a bit confused since in chrony.conf the offline parameter if I 
understand is to lookup time only when ppp connected. If this is true 
how do I change the file when I am at home (ADSL) or in the office (LAN) 
and therefore always connected ???

TIA,
Bob