In SAS, you can't.
SAS date and datetime formats do not accept numbers that point to a year before 1582.
It is also impossible to declare a date or datetime constant before 1582.
Are you ready for the spotlight? We're accepting content ideas for SAS Innovate 2025 to be held May 6-9 in Orlando, FL. The call is open until September 25. Read more here about why you should contribute and what is in it for you!
Learn how use the CAT functions in SAS to join values from multiple variables into a single value.
Find more tutorials on the SAS Users YouTube channel.