The eclipse will begin at 11:53 a.m. and all phases will be complete by 2:47 p.m. Total eclipse duration time – which scientists refer to as “totality” -- on the campus will be 2 minutes, 38 seconds, 2 seconds short of the greatest duration time a few miles south of Carbondale. More information is available on the Eclipse Southern Illinois website (eclipse.siu.edu). Media Advisory.