How can I adjust start and end time for reoccuring meetings in Outlook?

What you are looking for is the Recurrence button on the Appointment Series tab. When you click on the button it will bring up the recurrence details and you can change them.

The confusion with this is that when you edit the time of a meeting, you do it in the first screen. But when you need to edit the time for a RECURRING meeting, you need to click on the "Reccurence" icon, then choose "Custom" to go to the pane that you originally used to set up the recurrance.