[Dragonborn]

Hm, i think that the reason (If i understand what you want) is... You're using the var of the hour to set the Player/World Time ? If you don't understand, see the example :

pawn Код:

new hour, minute, second;
    gettime(hour, minute, second);
    SetWorldTime(hour);

Study the FS about time, created by SAMP Team, "gl_realtime"
here : http://pastebin.com/yjgtCJP0

Hope that helped you !