The Danish currency is the krone (DKK) and not EURO (which is the currency in many other countries in the European Union). 1 krone is divided into 100 øre.
Well-known international credit cards are widely accepted in Denmark, but as they might be inconvenient for every-day shopping, you might consider opening a Danish bank account and get a Dankort (Dan-Card) or credit card with the Danish bank.
To open an account and get a debit card (Dankort), please remember to bring your CPR number. It is also a good idea to bring your passport, your letter of admisssion, and your rental agreement.
Normal banking hours are Monday through Friday from 10 a.m. to 4 p.m., except on Thursdays when most banks are open to 6 p.m.