To move a meeting.
To bring a meeting forward.
To confirm a meeting
To accept an invitation to a meeting.
To postpone a meeting.
To cancel a meeting
To have a meeting at an earlier time or date.
To decide that a meeting will not happen.
To say that a meeting will happen.
To say you will go to a meeting.
To change the time or date of a meeting.
To have a meeting at a later time or date.