Indicates whether the given datetime value
dateTime occurs during the previous number of years, as determined by the current date and time on the system. Note that this function will return false when passed a value that occurs within the current year.
datetimezonevalue to be evaluated.
years: The number of years.
Date.IsInPreviousNYears(dateTime as any, years as number) as nullable logical
Determine if the year before the current system time is in the previous two years.
Date.IsInPreviousNYears(Date.AddYears(DateTime.FixedLocalNow(), -1), 2)