"From tomorrow until Wednesday"

Translation: Od jutra do środy

[BjornsenBjorn]

Why isnt it jutro and sroda?

[immery]

both od and do need Genitive.

[Mikrela]

Why is not "od jutra aż do środy "?

[zagadka314]

I was wondering the same thing

[Jellei]

The "aż" part is a bit of an addition, but why not, added.

[IvelisseIl2]

What does aż mean?

[Jellei]

It means "as many as", "as much as", although those would rarely feel natural in English. It implies that the speaker considers some value (mostly numerical) to be big. So for example "On ma aż osiemdziesiąt lat" rather translates simply to "He is eighty years old", but it implies that I think that eighty years is a lot.

So here this "aż" implies that I think that "from tomorrow until Wednesday" is a long time.

[Foblin]

I thought jutro was an adverb but, if it is in genitive, obviously isn't...

[Jellei]

It can be considered both a noun and an adverb.