Unable to find calendar application or alter working days. Student engineer access.

Dear users,

I would really appreciate if an experienced member could point me in the right direction with this issue.

I am attempting to alter the working days for a team member (myself) but cannot seem to access a calendar application. It feels like it should be a simple part of the project planning process but I am struggling. 

My access is as a student engineer.

Much thanks in advance,

Jonny