Very informative piece of work ! A rookie like me is grateful for all these explanations. I have a simple request about time datas that sas Belgian cnsultants can't seem to answer. In a table I have a duration column, format TIME8. I simply need to sum these durations but keeping the time format. Let's say I work on Task A during one hour and a half (01:30:00) then on task B during 00:30:00 min. Then again on task A during 00:15:00. I need to sum 01:30:00 + 00:15:00 for task a and 00:30:00 for task b. As my column is defined as time, Visual Analytics makes it a category (elapsed time) which cannot be summed. When I use TreatAs I end up with decimals, which is confusing : 01:06:00 is 1.10. Would you by chance have any solution ? TIA