You are wrong, it's

5 days Plat
3 days Gold
1 day Silv

Which in practice occurs soon after midnight said number of days before your departure, so it's not a matter of the hours so much as the days.

e.g. If I depart Friday morning, my upgrade will clear very early Tuesday morning.

I would say with P6 at this late date you stand a great chance of getting upgraded.

[This message has been edited by Western Airlines (edited 03-17-2003).]