difference in days

[Praveen Ray]

Hi All
Is there a way to get the difference in days , between two dates?
$dur  = $dt1 - $dt2;

print $dur->days,"\n"

prints days between two dates after factoring out higher units (as the 
documentation says).
How do I get the difference in 'days' ?

Need something like  Date::Calc::Delta_Days .

Thanks