NZC chief executive Martin Snedden said the new schedule was designed to improve the quality of Test match conditions while bringing the excitement of One-day cricket to a greater number of New Zealanders during the holiday period.
A Sri Lanka series of five One-day Internationals (ODI) will begin on Boxing Day with a One-day match at Auckland.
"Under the previous format, the only cricket played during the holiday period was the Boxing Day Test in Wellington."
Snedden said the new format would allow Test cricket to be played at a time when weather was likely to be more settled.
Australia's tour will begin with the first 20-over match between two International Cricket Council full member nations under lights at Auckland's Eden Park on February 17, followed by a five-match ODI series and a three match Test series.
Sri Lanka tour of New Zealand 2004-05
December 21 Vs Central Districts, New Plymouth
December 23 Vs Northern Districts, Hamilton
December 26 1st ODI, Auckland
December 29 2nd ODI, Napier
January 2 3rd ODI, Queenstown
Januray 4 4th ODI, Christchurch
Januray 8 5th ODI, Wellington
Januray 10-12 Vs Auckland, Auckland
Januray 15-19 First Test, Hamilton
Januray 22-26 Second Test Wellington.
Australia tour of New Zealand 2005:
February 17 Twenty20 international
February 19 1st ODI, Wellington
February 22 2nd ODI, Christchurch
February 26 3rd ODI, Auckland
March 2 4th ODI, Hamilton
March 5 5th ODI, Napier
March10-14 First Test, Christchurch
March 18-22 Second Test, Wellington
March 26-30 Third Test, Auckland.