Error creating a project from XML file

Hi everyone,

I have a problem when I try to create a project from a XML file: if I enter 18:00:00 as the end time of the activities it returns a "Schedule End Date" error; if I set 17:00:00 everything goes well and it creates the project. Seems like it's not accepting that I schedule works after a certain hour, does anyone know where I could set it to accept everything?

Thanks