Team calendar time management

Hi,

We have been using trello to manage individual partners portfolio's of work. This includes allocating to a number of team members. We have 5 boards for 5 partners, with each job having stages of completion along with an allocated team member(s).

Is there a way of mapping all these job onto a global calendar so that we can visually see these jobs on a calendar for all team members?

At the moment we are then duplicating work by planning each job to each team member on an excel spreadsheet, however this does leave room for error.

Thanks in advance,

Jamie