Wiz, first of all, the OM-A doesn't say anything... It USED to say 7 days before, but that has conveniently been removed as far as I remember.
True, I stand corrected.
Second, don't be a tool: 7 days before on a 30 day month is the 23rd.
False.
24th-1
25th-2
26th-3
27th-4
28th-5
29th=6
30th-7
Some of you really need some remedial maths.