Creating Random Dates in ColdFusion: RandDateRange( dtFrom, dtTo )

<cffunction name="RandDateRange" access="public" returntype="date" output="false"
	hint="This returns a random date between the two given dates (inclusive).">

	<!--- Define arguments. --->
	<cfargument name="FromDate" type="date" required="true" />
	<cfargument name="ToDate" type="date" required="true" />

	<cfscript>

		// Define the local scope.
		var LOCAL = StructNew();

		// Get the difference in seconds between the two dates.
		LOCAL.TimeDifference = DateDiff( 
			"s", 
			ARGUMENTS.FromDate, 
			ARGUMENTS.ToDate 
			);

		// Create a random time increment based on the second difference. 
		// The time span object is a representation of time-length in 
		// terms of a single floating-point number.
		LOCAL.TimeIncrement = CreateTimeSpan(
			0, // Days
			0, // Hours
			0, // Minutes
			RandRange( // Seconds
				// Our smallest possible time increment.
				0,

				// Our largest possible time increment that will not 
				// put us past the ToDate.
				LOCAL.TimeDifference
				)
			);

		// Get a new random date based on the FromDate and the random
		// time span.
		LOCAL.RandomDate = (ARGUMENTS.FromDate + LOCAL.TimeIncrement);

		// This random date now is formatted like a TimeSpan object, 
		// meaning that it is in the form of one floating point number.
		return( LOCAL.RandomDate );

	</cfscript>
</cffunction>

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