AFAIK, one day preceding the same date next year. For Feb 29 this year, assume Feb 28 next year.

I'm currently on the second leg of QR 907 with slightly limited internet connectivity. [But on the plus side, it is complimentary.] Let me see if I can dig out the exact wording when I get home.

In the mean time, probably check with [MENTION=204888]JAXBA[/MENTION] for an authoritative answer.