This (needs checking), may work as to load a 6am time value by section file.
Code:
GamePlay.gpPostMissionLoad(CreateNewTime()); // loader placed in statement to trigger when required(inside timetick section)
// section file to load, sits outside timetick section
internal ISectionFile CreateNewTime()
{
ISectionFile newtime = GamePlay.gpCreateSectionFile();
newtime.add("MAIN", "TIME 6", "");
return newtime;
}