I'm having trouble changing the time server side on server tick. I don't know where to access the server version of world, but I can access the client side so I know my time change code is working. Any help?

@SubscribeEvent
public void onServerTick(TickEvent.ServerTickEvent event) {
	if(i == (20*60)){
		try{
			String time = sdf.format(cal.getTime());

			String[] Time = time.split(":");

			int hour = Integer.parseInt(Time[0]);	

			System.out.println("[" + Reference.modID + "] " + hour);	

			System.out.println(hour * 1000);

			long worldTime = hour * 1000;

			System.out.println("[" + Reference.modID + "] " + worldTime);

			if(!mc.theWorld.isRemote){
				System.out.println("[" + Reference.modID + "] Changing world time...");
				mc.theWorld.setWorldTime(worldTime);
				System.out.println("[" + Reference.modID + "] Time changed!");
			}
		}catch(NullPointerException exception){
			System.out.println("[" + Reference.modID + "] ERROR:" + exception);
		}
		i = 0;
	}
	System.out.println(i);
	i++;
}

And your goal here is to...?