I live about 35-40 minutes away from work. I get off at 2:30 and have a dentist appointment coming up at 3:00. I asked my manager a month ago if I could just not take my 30 minute lunch that day and then leave 30 minutes early. This was approved. Now the day before the app. I asked again to make sure that they remembered that I'd be leaving early, and was told that, even if I didn't take my lunch, I'd still receive points for leaving early. So instead I'm just using a vacation day tomorrow. That way I get 8 hours of pay, get to my app. on time, and not get points.
TL:DR “We'll punish you for working seven and a half hours, so instead just don't come in”.