We finally have a date for New Zealand.
Details for Germany coming soon.
For the other announced dates:
Doctor Who: The Snowmen premieres Christmas Day!
UK - 5:15pm on BBC One
US - 9/8 central on BBC America (U.S.)
Canada - 9E/6P on Space (Canada)
Australia - Boxing Day, Wednesday 26 December 2012 at 7.30pm on ABC1