Add a Channel Calendar in Teams Once within a given Teams Channel, click the + Tab Within the app search bar, type in Calendar and then choose Channel Calendar App Give the tab a name and click Add You will now have a Channel-specific calendar added as a tab to your channel, displaying only the events from that Channel

A channel calendar is a filtered view of the Microsoft 365 group calendar that is associated with the team. It only shows the events for a specific channel and not the entire team. You can read up on how Teams and Microsoft 365 groups work together at How M365 groups work with teams.

The Teams channel calendar app highlights meetings scheduled for a calendar and makes it easier for team members to attend these events. Meetings for all channels in a team are stored in a single calendar, so the app applies a filter to display the meetings belonging to the channel it is installed into.