Date formats are different in registration emails - how to fix

I have an event with both Individual and Group registration. In the confirmation emails that go out for an Individual registration the event date shows as mm/dd/yyyy in both the user and the admin emails. In the confirmation emails for a Group registration the date is displayed as mm/dd/yyyy + time.

Both should be coming from the "User Email Body (Offline Payment)" email template under the Messages tab in my event. This text of the message is simple and gets registration info from [REGISTRATION_DETAIL]

Why are the dates displaying differently and how can I get rid of the time information? There must be something in the Event Booking backend that is doing this.