public Week GetWeek(WeekOfTheMonth week)
{
if (week.ToInt() > WeekCount)
{
return(null);
}
var firstThursdayOffset = (-(int)FirstDay.DayOfTheWeek).DMod(7);
var dayInWeek = FirstDay + firstThursdayOffset + (int)week * DAYS_IN_A_WEEK;
return(dayInWeek.Week);
}
public static string ToString(this WeekOfTheMonth weekOfTheMonth)
{
int numeral = weekOfTheMonth.ToInt();
return($"Week {numeral}");
}