How it works exactly?
The first day of the month to the first day of the next month (regardless the day the soldier is assigned to psi training), or from day to day (ex: soldier assigned june 15, so until July 15)?
And if the soldier state is changed (from assigned to unassigned, then, from unassigned to assigned, during a period), is that the presence of previous days are counted, or it restarts from zero?