map time limit
 

Hello
I am setting up an awp server and liked that the map does not change at the end of the 15 rounds of casual but rather at the end of 30 minutes.

Re: map time limit
 

Didn't understand which way you want but:
1) If you want that map should change after 15 round then
mp_maxrounds 30
mp_timelimit 0
2) If you want that map should change after 30 mins
mp_maxrounds 0
mp_timelimit 30

This values should be changed in gamemode_*.cfg where "*" stands for the gamemode you're running (casual, competitive, etc)
AWP gamemode is generally runned in casual gamemode so you should change cvar value in gamemode_casual.cfg (csgo/cfg/gamemode_casual.cfg)