You are able to set tickets to go on sale and/or off sale automatically using the advanced settings of the Ticketing tab in the event admin.
Follow the steps below to successfully set tickets to go on sale/off sale at a chosen date and time:
1. Click Manage on your Event
2. Select Edit Listing & Tickets
3. Click the Ticketing tab
4. Click the Blue Cog located to the right of the ticket type
5, Adjust the On Sale From / On Sale Until function via the drop down menu