`TDateTimeHelper`
		Create
		CreateLocal
		CreateUnixTime
		CreateTotalSeconds
		ToString
		StartOfYear
		EndOfYear
		StartOfMonth
		EndOfMonth
		StartOfWeek
		EndOfWeek
		StartOfDay
		EndOfDay
		AddYears
		AddMonths
		AddDays
		AddHours
		AddMinutes
		AddSeconds
		AddMilliseconds
		CompareTo
		Equals
		IsSameDay
		InRange
		IsInLeapYear
		IsToday
		IsAM
		IsPM
		YearsBetween
		MonthsBetween
		WeeksBetween
		DaysBetween
		HoursBetween
		MinutesBetween
		SecondsBetween
		MilliSecondsBetween
		WithinYears
		WithinMonths
		WithinWeeks
		WithinDays
		WithinHours
		WithinMinutes
		WithinSeconds
		WithinMilliseconds