Got your PM but figured it would be best to add in here.
The reason it says certain times during the day is because it has some insulin mimetics in it that help shuttle nutrients to the muscles. It is best to dose before a decent ssized carb meal (hence post workout).
Other than that there is no real reason to have your dosages all before your workout or any particular time of day really. Usually just dosing twice a day is the best as most have half lives around 8-14hours.
Don't make it too complicated