Hi Bob,

In past Commonwealth Contests I have had some success working UK stations 
at around 1300 to 1400 Z (5 to 6 AM here in the Yukon).  
When I have been able to make contacts in Australia and NZ it has 
generally been later in the afternoon, my time, about 2300 Z or so.  
I just have a doublet antenna and 100 W (but a low noise level) so a 
lot depends on the antennas at the other end.  
At the best of times it is hard making many contacts from here, 
unfortunately.

73,

Allen, VY1KX