On Wed, 7 Jul 2010 17:38:45 -0300, Daniel Martins <danielemc@gmail.com> wrote:
> 
> Eric,
> 
> Your awk seems to get timed appts in GMT
> 
> How can I adapt it to GMT-3
> 
> Daniel

Okay!  I think I've got this working for any time zone (as well as
adding some more functionality -- read the prologue in the script for
info).  

Attached is the awk script.  I use this from within a shell script (on
Linux) that essentially does this:

--8<---------------cut here---------------start------------->8---
ICS=basic.ics
ORG=googlecalendar.org
AWK=ical2org.awk

# get the Google calendar
wget  http://www.google.com/calendar/ical/[...]/basic.ics

# convert the ical entries to org format, adjusting for the
# time zone information

# this next command yields hours from UTC, + or -, times 100
# Note: this does not cater for those people living in time zones
# that are not aligned with discrete hours (e.g. Newfoundland)...
timezone=$(date +%z | sed 's/^\([+-]\)0/\1/')

# convert this to seconds for use in the awk script
seconds=$(($timezone*36))

# and now process the ics file with appropriate time zone
awk -f $AWK --assign SECONDS=$seconds < $ICS > $ORG
--8<---------------cut here---------------end--------------->8---

Please test this all out and let me know if it works.  If the date and
sed commands work, you should be adjusting the times by -3*3600=-10800
seconds.  This seems to be working for me with BST (aka GMT+1).

eric