It possible to add local exchange calendar to microsoft teams ?

Hi,

If it is a calendar in a tab in a channel that is possible by adding a web page with a link to the calendar, not the best way maybe.
https://techcommunity.microsoft.com/t5/microsoft-teams/calendar-options-in-ms-teams/m-p/50685

If you want to see your own calendar in Teams that is possible with Exchange Server 2016, if it doesn't work see this thread with some suggestions how to solve it (as an admin).

https://techcommunity.microsoft.com/t5/exchange-team-blog/configuring-teams-calendar-access-for-exchange-on-premises/ba-p/1484009