Yes! When you create your event, set the event start date (required) and start time. Then set the event end date (as different from the start date) and then enter your desired end time. If you need people to register for different events within the main event, see our instructions for how to add multiple event registration in one eCard.
To view your invitation response form, click the 'Direct Link' button and paste that website address into a browser. You will see the response form that your recipients will see when they respond to your event.