How to get the Unixtime of an event?

[Bastian Seeleib]

Hi all,

i'm trying to get the unixtime of an event and having trouble with it, 
could someone help me?
Using the follwing function calls, i'm getting 1471941000 which is 2 
hours later than expected.

icalproperty *pt = icalcomponent_get_first_property(comp, 
ICAL_DTSTART_PROPERTY);
struct icaltimetype t = icalproperty_get_dtstart(pt);
printf("%ld", icaltime_as_timet(t));

The dates are defined as following:

DTSTART;TZID="Central Europe":20160823T083000
DTEND;TZID="Central Europe":20160823T103000

The VTIMEZINE is set to:

BEGIN:VTIMEZONE
TZID:Central Europe
BEGIN:STANDARD
DTSTART:19501029T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;BYMINUTE=0;BYHOUR=2;BYDAY=-1SU;BYMONTH=10
END:STANDARD
BEGIN:DAYLIGHT
DTSTART:19500326T020000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
RRULE:FREQ=YEARLY;BYMINUTE=0;BYHOUR=2;BYDAY=-1SU;BYMONTH=3
END:DAYLIGHT
END:VTIMEZONE

To me it seems that the definition of VTIMEZONE is ignored.