Reference for unit 'DateUtils': Constants

`ApproxDaysPerMonth`		Average number of days in a month, measured over a year. Used in MonthsBetween.
`ApproxDaysPerYear`		Average number of days in a year, measured over 4 years. Used in YearsBetween.
`DayFriday`		ISO day number for Friday
`DayMonday`		ISO day number for Monday
`DaySaturday`		ISO day number for Saturday
`DaysPerWeek`		Number of days in a week.
`DaysPerYear`		Array with number of days in a year. The Boolean index indicates whether it is a leap year or not.
`DaySunday`		ISO day number for Sunday
`DayThursday`		ISO day number for Thursday
`DayTuesday`		ISO day number for Tuesday
`DayWednesday`		ISO day number for Wednesday
`MonthApril`
`MonthAugust`
`MonthDecember`
`MonthFebruary`
`MonthJanuary`
`MonthJuly`
`MonthJune`
`MonthMarch`
`MonthMay`
`MonthNovember`
`MonthOctober`
`MonthSeptember`
`MonthsPerYear`		Number of months in a year
`OneHour`		One hour as a fraction of a day (suitable for TDateTime)
`OneMillisecond`		One millisecond as a fraction of a day (suitable for TDateTime)
`OneMinute`		One minute as a fraction of a day (suitable for TDateTime)
`OneSecond`		One second as a fraction of a day (suitable for TDateTime)
`RecodeLeaveFieldAsIs`		Bitmask deciding what to do with each TDateTime field in recode routines
`WeeksPerFortnight`		Number of weeks in fortnight
`YearsPerCentury`		Number of years in a century
`YearsPerDecade`		Number of years in a decade
`YearsPerMillennium`		Number of years in a millennium