datetime/time quickie

[vurentjie]

hi,

i can't seem to find how to do this in the docs ... simple example

i have 2 times 9:00,12:00 for which i need to get the interval 
between them in minutes, ie 180

i though I could use Interval!TimeOfDay("9:00:00","12:00:00") and 
convert this to minutes from here but this does not seem to be 
correct.

i have looked at Duration!(Tp)().total!"minutes"();

but i cant seem to figure out how to use Interval/Duration 
together (without rolling out some kind of hacked intermediate 
method)

any quick advice