Can I import dates and tasks into a calendar in Teams?

I am looking for a way to use teams to import appointments and tasks into a calendar. Example: I am an estimator and we perform certain tasks for each project we bid on. Some tasks are done 4 days before the bid day, others 7 days before for example. I would like to enter the project name and due date and have the tasks automatically entered based on the due date. Is this possible or not?