For back in real time, you need to modify the init.sqf in mission pbo file and remove this part :
// Niceonegunit
[4.3] execVM "scripts\compile\fn_accelratedTime.sqf";
find_time = 30;
You maybe need to restart a new game ...
I use Eliteness for open .pbo file, you need it or an other one.
Hope i help you :)
No "GooGle Translate" Help this time !!! :D
When there's no more room in hell the dead will walk the earth ...