@Nikita Pandey You can use Microsoft Event endpoint to get the meeting start and end time of a specific user by passing the event id of the teams meeting. Here is an example of using it -
https://graph.microsoft.com/v1.0/users/<user email address>/events/AAMkADBhZDBlZDJmLTgzY2EtNGZiYi1hZjJlLTUyOTZhMThkMGQyZgBGAAAAAAD-t-9GXYQNRogb58-hfdKLBwCui86sWT5YTZ5oyIp9eiMgAAAAAAENAACui86sWT5YTZ5oyIp9eiMgAAAG7tD6AAA=?$select=start,end
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