Hello,
Thank you for posting on the forum today. I’m Bambi, a user like you and I’ll be happy to assist you.
To address the issue of not being able to see Saturdays and Sundays in the calendar on the web version of Teams and Teams for Linux, you may need to make changes in the admin center. From your description, I can see you use Teams for Education. I’ll suggest you contact your IT admin to assist you make these changes. If they are unsure about how to fix the issue, they can contact the business technical department for best assistance.
To do this, kindly sign into the admin center https://admin.microsoft.com to raise a ticket that needs to be submitted by the Admin representative of the company account.
Describe the issue and choose how you will like to be contacted either via email or call.
An agent will reach out to assist you resolve the issue.
Let me know if there’s anything else I can help you with.
Best Regards,
Bambi