Link
https://www.nasa.gov/mission_pages/shuttle/launch/countdown101.html
For the space shuttle countdown, built-in holds vary in length and always occur at the following times: T-27 hours, T-19 hours, T-11 hours, T-6 hours, T-3 hours, T-20 minutes, and T-9 minutes.
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I believe we are being told that the countdown has been going on for a while, with necessary holds. Unfortunately we do not know where in the countdown we are.
Maybe someone can look at posts and determine at what point we are in the countdown.
That's what I'm waiting for! Do it Q!
I presume this in ref to [-30] in earlier post ... I figured 30 days ... but anons are interpreting this to mean HOURS?