1) Setup/change GMT settings in your firewall.cx account profile, whatever +/- (plus/minus) GMT is for your location.
Now you don't do anything regarding time.
2) when you book through calendar, you book according to YOUR LOCAL TIME (not GMT time). That's it
example: If you want to practice lab @ 12noon your local time, and you fall under GMT +4hrs or -2hrs or anthing (you already did change in your profile), you book in the calendar 1200-1300 (1hr session)
i have a problem regarding this time set. I am from India GMT+ 5.30.
as 5.30 is not available in the list given in list. so i was trying set timing by GMT+5 /GMT+6. after updating i was using shout box to check whether its correct or not. but not getting my local time on the shout box!
it means shout box always takes GMT value not local value. or my local time is not setting. I guess first one is correct!