(1) Explain your problem, don't simply post "This isn't working". What were you doing when you faced the problem? What have you tried to resolve - did you look for a solution using "Search" ? Has it happened just once or several times?
(2) It's also good to get feedback when a solution is found, return to the original post to explain how it was resolved so that more people can also use the results.
Hello
the solution is that mentioned by Mr. Kelly.
Just to indicate that this problematic (time deviation, delay analysis, extension of time, etc) related to forensic analysis is very interesting in planning/scheduling. There are several approaches to time impact analysis. Try with AACE recommended practices (among others).
Regards