/// <summary>取得重疊日期時間區段</summary>
public static DateTimeSection Overlap(this DateTimeSection sectionA, DateTimeSection sectionB)
{
return(new DateTimeSection
{
Start = OrionUtils.Max(sectionA.Start, sectionB.Start),
End = OrionUtils.Min(sectionA.End, sectionB.End),
});
}