_DateTimeRangeCheck

Characteristic	Description
Availability	Date time items
Description	Checks whether a date falls within a specified range of another date. When you create a rule based on the template, you specify the two date time items, the date part to compare (by default, days), and the minimum and maximum range.
Returns	True—Date1 is within the specified range of Date2. False—Date1 is not within the specified range of Date2.
Display text	_CompareDatesWithRange(date1,date2,datePart,rangeMin,rangeMax)