Cancelling ADRS

[supersnoop]

Does anyone know for sure if the cancellation policy is 24-hour notice or simply by midnight the day prior? I've re-read the email and it only specifies "one day prior." It's the whole virtual boarding pass that's creating havoc for me - I never cancelled ADRs in the past.

It's definitely midnight the day prior. If you travelling, remember that it's midnight in the Eastern timezone.