Not exactly related question (but sort of). The Var t sent to PROC UNIVARIATE must be a numeric data type, but if it were a TIME type PROC UNIVARIATE would still treat it as a number. Is the practice to a always deal with TIME units as 1.5 minutes rather than 1 min 30 seconds? Hope I made sense here. I work with a lot of time intervals and that seems to be the only way to work with them in SAS. I'm sure I'm wrong though as SAS always seems to have a solution.