Thanks to life888888 a minor change, the starting date is 0001 instead 0101.
select IT_NUMBER,IT_SUBJECT,
DATE_ADD('0001-01-01', INTERVAL IT_REFDATE DAY) AS AddedOn,
IT_REFDATE ,
DATE_ADD('0001-01-01', INTERVAL IT_ModifiedDate DAY) AS
ModifiedOn, IT_ModifiedDate
from items ORDER BY IT_NUMBER DESC LIMIT 100
Thank you life8888888