'Dag' can have two meanings. One meaing is 'day', the other is '(good)bye'.
"Dag" means day in Swedish.
Ha en bra dag!
Ha en skön dag!
Hvilken trevlig dag
'Enjoy your day' may be 'njut av din dag' in Swedish.
Happy Valentine's day
Dag Hammarskjold
Dag Hammarskjöld.
Hur har din dag varit? or Hur har du haft det idag?
dag is an abbreviation for decagram which is 10 grams.
dag means decagram or 10 grams.
Have a nice day is " ha en trevlig dag" in Swedish.
She says "God dag på dig!" which, roughly translated, means "Good day to you!" She is a little tricky to understand, as her Swedish accent is not very good. I believe in another scene she maybe says "Min björk stock"(?) which would mean "My birch log."