So I just checked in for my 10:00 PM redeye from SEA-EWR right at 10:00 to try to optimize what little chance I had for an upgrade (on a Plat Y-Fare no less but yeah I know trans-con). As per the boarding pass I was the 12th person to check in.....are there really 12 equally upgrade obsessed people like me dying for an upgrade fix who all checked in within 30 seconds of the 24 hour window, or is the 24 hour clock based some other virtual reality time zone?