The 11:24 AM check time was chosen because Remodelaholic's email was sent at 9:24 AM — exactly 2 hours earlier. If Model A (2-hour fixed release) is correct, the release should occur at exactly 11:24 AM. The check time is not arbitrary; it's the earliest possible release under the simplest model. If Model A is wrong, subsequent checks at 1:24 PM (3h), 3:24 PM (4h), and EOD will test Models B and C.