Create Pricing For a Specific Event Time
Pricing can be created for a specific event time within an event. As an example, you may have a preview performance that is priced lower than your normal event times, or perhaps an opening night gala that you wish to price higher than standard ticket prices.
Here is how to set that up:
Create your standard pricing for your overall event.
Create your Event Time Specific Price.
When building this price you will want to select the Specific Event Times radio button under the description, and then check any dates that the price should work for.
Note - If you select multiple event times, then a price term will be created for each of the selected Times.

Once you save the new price, you will see a new option in the pricing screen.
If you check the checkbox next to Override all other prices for this event time. Then only that Preview price will appear as available to purchase at the event time specified.