Hi, I currently have a table with a list of time intervals that aren't always continuous such as the first observation being 9:35:10- 9:35:20 and the second observation being  9:35:50- 9:36:00. I would like to create a new variable that adds seconds to each observation, for instance:    Obs.        Time_interval              New_interval 1            9:35:10- 9:35:20         9:35:20- 9:35:30 2            9:35:50- 9:36:00         9:36:00- 9:36:10 3            9:36:10- 9:36:20         9:36:20- 9:36:30     I've tried using an INTNX function to create the new variable. The code runs but no there are no observations. Any suggestions would be greatly appreciated, thanks. Here is a sample of code I've tried:   data temp; set temp; New_interval = intnx('ss',time_interval,10); run;     ... View more