Microsoft Teams will soon allow you to add a shared calendar to a channel

Microsoft Teams will soon get the ability to add a shared calendar to a Teams channel. This upcoming feature will allow you to create and share a channel specific calendar for members to view events.

• Teams automatically creates a new post, which will appear in the activity feed, when a channel meeting is created.
• Any user who has notifications turned off will see the event only when they open the channel calendar.

Microsoft will roll out this feature in Jan 2021.

Source: Microsoft