--  DATE and TIME are useful to create DateTime columns
--  A DateTime is a number. Therefore, it is possible to
--  sum the date and the time part.
EVALUATE 
    {
        DATE ( 2020, 10, 15 ),
        TIME ( 22, 45, 30 ),
        DATE ( 2020, 10, 15 ) + TIME ( 22, 45, 30 )
    }

--  When the arguments overflow their range, DATE and TIME
--  behave in different ways:
--
--  DATE adds the excess values to the date, moving time forward
--  TIME adds the excess values, but it does never exceed the day
EVALUATE 
    {
        DATE ( 2020, 10, 32 ),
        DATE ( 2020, 20, 1 ),
        TIME ( 10, 90, 0 ),
        TIME ( 50, 0, 0 )
    }