/// <summary>
/// 지정한 년도, 분기의 시작 시각
/// </summary>
public static DateTime StartTimeOfQuarter(this int year, QuarterKind quarter,
int yearStartMonth = TimeSpec.CalendarYearStartMonth)
{
var months = (quarter.GetHashCode() - 1) * TimeSpec.MonthsPerQuarter;
return(new DateTime(year, yearStartMonth, 1).AddMonths(months));
}
protected QuarterTimeRange(int startYear, QuarterKind startQuarter, int quarterCount, ITimeCalendar calendar)
: base(GetPeriodOf(calendar, startYear, startQuarter.GetHashCode(), quarterCount), calendar)
{
StartYear = startYear;
StartQuarter = startQuarter;
QuarterCount = quarterCount;
var endYearQuarter = TimeTool.AddQuarter(startQuarter, startYear, quarterCount - 1);
EndYear = endYearQuarter.Year ?? StartYear;
EndQuarter = endYearQuarter.Quarter ?? StartQuarter;
}
/// <summary>
/// 지정한 년도, 분기의 시작 시각
/// </summary>
public static DateTime StartTimeOfQuarter(this int year, QuarterKind quarter,
int yearStartMonth = TimeSpec.CalendarYearStartMonth) {
var months = (quarter.GetHashCode() - 1) * TimeSpec.MonthsPerQuarter;
return new DateTime(year, yearStartMonth, 1).AddMonths(months);
}
