How to use the Danish-Australian Bilateral Agreement to stay in Denmark for an additional 90 days regardless of the number of days you have already spent in the Schengen Area.
The Ministry of Foreign Affairs of Denmark operates the Embassy of Denmark in Canberra. They state on their website:
Bilateral agreements
Citizens of certain countries are entitled to stay in Denmark for 90 days, regardless of stays in other Schengen countries.
For information regarding the bilateral visa agreements, please see this page on the website of the Danish Immigration Service.
If you have questions regarding the bilateral visa agreements, please contact the Danish Immigration Service on e-mail: visa@us.dk.
Following the link through to the Danish Immigration Service and scroll down to the follow:
How long can you stay in the Schengen region?
If you are travelling visa-free, you may stay in the Schengen region for a maximum of 90 days in any 180-day period. The 90 days can be used either for one long stay or several shorter stays.
Citizens of certain countries are entitled to stay in Denmark for 90 days or 3 months, regardless of stays in other Schengen countries
Citizens of Australia, Canada, Chile, Israel, Japan, Malaysia, New Zealand, Singapore, South Korea and the US can freely enter and stay in Denmark for the following periods, regardless of whether they have stayed in another Schengen country prior to entry into Denmark.
Australia, Canada, Israel, Japan and Singapore
Nationals of Australia, Canada, Israel, Japan and Singapore may stay in Denmark for up to 3 months reckoned from the date of their first entry into Denmark or another Nordic country. The time the foreign national has stayed in Denmark or another Nordic country within 6 months preceding any such entry shall be deducted from the mentioned 3 months.
Malaysia
Nationals of Malaysia may stay in Denmark for up to 3 months reckoned from the date of their first entry into Denmark or another Nordic country (not including Iceland). The time the foreign national has stayed in Denmark or another Nordic country (not including Iceland) within 6 months preceding any such entry shall be deducted from the mentioned 3 months.
United States of America (USA) and New Zealand
Nationals of the United States of America (USA) and New Zealand may stay in Denmark for up to 3 months reckoned from the date of their first entry into Denmark. The time the foreign national has stayed in Denmark within 6 months preceding any such entry shall be deducted from the mentioned 3 months.
Chile
Nationals of Chile may stay in Denmark for up to 90 days reckoned from the date of their first entry into Denmark or another Nordic country. The time the foreign national has stayed in Denmark or another Nordic country within 180 days preceding any such entry shall be deducted from the mentioned 90 days.
South Korea
Nationals of South Korea may stay in Denmark for up to 90 days reckoned from the date of their first entry into Denmark or another Nordic country. The time the foreign national has stayed in Denmark or another Nordic country within 6 months preceding any such entry shall be deducted from the mentioned 90 days.
That is the only information given on their website. I recommend that you take a few precautions before you enter Denmark.
• Exit the Schengen area entirely and fly directly to Denmark (do not transit through a third country)
• You will probably be required to provide evidence of your previous stay in Schengen (e.g. entry and departure stamps in your passport, hotel invoices, etc.)
If you can prove you’ve been in Schengen for as long as you say, and this corresponds to the stamps in your passport, then you’ve got nothing to worry about. Just a reminder, you must prove you have the necessary means to pay for your stay and return trip. This is generally calculated at DKK 350 per day, or DKK 500 per day if you plan on staying at hotels.
Enjoy Denmark!