PSA
If you have the game A Hat In Time, you can now download the new DLC Seal The Deal for FREE for the rest of today

By what timezone I couldn't say

If you get it after today, it's $4.99

this for all platforms? I think we have it on Ps4

and if you don't have the game, it's on sale on steam

(which I know because I put it on my wishlist and forgot about it)

I do not know

All I know is the deal exists on Steam

I don't have any other platforms it's out for

Apparently the DLC features split screen Co-op mode and also a new level where you are on a cruise ship crewed by baby seals

PS4, XBone, Switch release is confirmed but no date yet

Oh, it looks like no dlc for consoles yet but that will happen in the future