Tim, if you look at 6pm you will miss it by 21 minutes, if it on time. They're saying launch at 5:39pm. (Subject to change, as always!) I always forget these things so I set my alarm on my phone!
I noticed that - I thought I saw 5:59 but see it is more like 5:30. I hope there is a not a long hold - there usually is always one for some amount of time.