Create a new DOFValue to hold an array of values of type DateTime. 
- Resource Management:
 - This function allocates resources that must later be freed by calling DOFValue_Destroy.
 
- Parameters
 - 
  
    | len | Element count of the new array. This may be 0, and should be less than 32768.  | 
    | val | Array of DateTime values to be held by the new DOFValue. This must not be NULL if len > 0, and must point to memory containing at least len DateTime values. | 
  
   
- Returns
 - The new DOFValue, representing an array of values of type DateTime.
 
- Exceptions
 - 
  
    | NULL | is returned if the resulting DOFValue could not be created, or an invalid parameter was detected.  |