Rounding time to nearest quarter, atleast 30 minutes in time
<p>Bah, I've been fiddling on how to do this. I need a function that returns <code>&lt;hour&gt;:&lt;minutes&gt;</code> that is rounded to a quarter, but need to be atleast 30 minutes in future time.</p>

<p>Anyone got a good idea and how to do this?</p>
