Future notification based on year

Hello All…

I am working on a Construction/Facilities related project and my intention is to assign a specific year to a variable i.e. unsigned int roofInstalled {2021}; …Assuming that this roof will last 20 years. I want to then output to terminal twenty years later - in the year 2041 - “Roof needs to be replaced”. How can this be accomplished? Is this even possible?