30 MINS FOR LAUNCH!!
You sure?
Because the countdown is screwed up, whoever did that doesn't seem to realize that London isn't GMT.
It's 17:32 right now.
London is BTS, so it's 18.35
London is completely irrelevant though, OP says 19:00 GMT, which is in ~75 minutes.
If this launches 19:00 BST instead of GMT, be ready for a huge drop in credibility and lots of people screaming PREMINE PREMINE.