Responsive Theme – quick question/help

Hello Everyone,

I just created the child theme from Responsive Theme. I’m wondering if anyone can help me with this. For the Recent Posts widget, using firebug, I inspected Recent Post HTML widget with a dummy blog,and I get

<span class=”post-date”>December 28, 2012</span>

for the post date. What I would like to do is instead of that, I would like to format it like this:

<span class=”day”>30</span>
<span class=”month”>Jun</span>
<span class=”year”>2009</span>

Does anyone know/assist me in doing that? I checked the functions.php and I’m a bit lost. I’m still new to WP so go easy on me. Thanks lol.