1) To give kannel gateway Universal Time (GMT) :
./configure --disable-localtime + other options
make
make install
2) ALSO TRY : linux change time and date with command line
set date : date +%Y%m%d -s "20081128"
set time : date +%T -s "10:13:13"
> I have kannel running in a CET timezone.
> When I let Kannel send a message to a cell phone located in emea, the new SMS
> will be sorted -6 hours in the sms inbox...
Minor mistake in my previous message, the Kannel server is installed in EST time
zone and i'm sending mail to a celphone located in CET.