As the original question has been deleted, here is a copy from Google's cache. ------------------------------------------------------------------------------------------------------------------ I have a Data set that contains separate columns for day, month and year. I need to consolidated these into one single variable . Example: 1     20     1985   (consolidated into a single SAS date) Would I want to use the MDY Function? and what would this look like? Once I've consolidated this date I need to find the difference from this new column and another date column that was originally a single columned date. Thanks! Jack ... View more