If you need to get set up for a meeting before the start time, or just prefer stay ahead of schedule, you can join a meeting early.
To join a meeting early
From the Amazon Chime app, choose Meetings, Join a Meeting.
Meetings that start in the next 30 minutes appear. Select the meeting you want to join.
If you don't see the meeting in the list, enter the meeting ID to join.
If anyone else joins early, you can see their information and communicate with them before the meeting starts.