Hello!

Has anyone that has done the blood drive at Gen Con know how true they stay to appointment times? And how long it generally takes to donate? I want to donate, but I have specific limited time in between events, so I want to make sure I can make it work before scheduling a time slot. 

Thanks in advance!

I asked them about it this year, and they said each appointment would probably take about an hour.  Someone I spoke with who did it last year said that it started on time.