Date.Constructor(Year as Integer, Month as Integer = 1, Day as Integer = 1, hour as Integer = 0, minute as Integer = 0, second as Integer = 0)

From Xojo Documentation

Constructor
Date.Constructor(Year as Integer, Month as Integer, Day as Integer, Hour as Integer, Minute as Integer, Second as Integer)
Introduced 2009r2

Sets the new date object to the passed Year, Month, and Day, Hour, Minute. and Second.

Sample Code

This code creates a Date object and sets it to 15 April, 2017.

Dim d As New Date(2017, 4, 15)