A couple of things about date handling. Firstly, in some places in the world, they prefer Sunday as the first day of the week (e.g. Australia). In other places, Monday. (e.g. Norway). In the Omnifocus manual it says that “next Friday” means Friday in the next week. So what does that mean on Sunday? If Sunday is the first day, this works correctly. If Monday is the first day, it doesn’t work. (I set my locale to Norway and checked). I did notice that Omnifocus cleverly changes the calendar layout to Monday first if you set locale to Norway, so the app isn’t completely oblivious to this issue.
Secondly, there is a UK-ism that is shared by many places in the world (e.g. Australia and a lot of British outposts), that “Friday week” (or Monday week or whatever) means “not the nearest Friday, but the one after”. This is NOT the same as “Next Friday” in Omnifocus in all cases (albeit it is in some cases). e.g. if this is Friday and I say “Monday week”, it means in 10 days, whereas “Next Monday” would mean (at least in Omnifocus logic), in 3 days.
Anyway, it would be great if Omnifocus supported this UKism because it is very common.
It would also be nice if it supported the UKism “fortnight” which means 2 weeks.