/// <summary> /// 현재 분기 첫번째 일자(<see cref="DateTime"/> /// </summary> /// <param name="quarter">해당 분기</param> /// <returns>특정 분기의 첫번째 DateTime <see cref="DateTime"/> (2007-04-01 00:00:00:000)</returns> public static DateTime GetStartOfQuarter(this Quarters quarter) { return(quarter.GetStartOfQuarter(DateTime.Now.Year)); }