With BuzzMyEvent, you can choose to change the dates of Event for ticket sale in case of need, by simply following the steps given below:
Note that another option present beside the “Event” button is the “Ticket” button. Click on the Ticket icon to reach this page: /CreateEvent?eid=xxx
On this page, select the symbol under “More” section to navigate to this page: /CreateEvent?eid=xxx. Here, you can change the dates of sale of ticket. Save the changes and they will be immediately updated in your event.