for example if a businessman is visiting another country..lets say to try to make a deal with a company there he might want to know the usual working hours of the country, the opening and closing hours of the banks, the holidays( so he'll know when or when not to go out to conduct business...
My 2006 Nissan Titan had something that sorta looked like that, only there was a line under the exclamation point. It was the Tire Pressure Monitor. It means at least one of your tires is low on air and you should check it out.
My 2008 Nissan Altima, on the other hand, has a Triangle around...