Smart's Super-Fast Wedding Plan Revealed by Elizabeth

While the average bride spends about 250 hours planning a wedding, Elizabeth Smart proved she is definitely not average, finalizing her wedding plans in record time.

Smart, 24, and Matthew Gilmour, 22, who have known one another for a year, were engaged just last month. Smart initially expected to have a summer wedding but moved the date up two weeks ago.

"It's everything you can imagine with planning a wedding," Smart tells PEOPLE exclusively. "Only, it's compressed into a few days."

Smart spoke about child advocacy at a South Carolina function just days before she flew with her parents, Ed and Lois Smart, from Salt Lake City, Utah, to Hawaii to marry Gilmour. The private ceremony, attended by family, was held Saturday afternoon.

With all the details of a destination wedding to arrange and manage, Smart laughed over trying to secure the traditional "something old, something new, something borrowed and something blue" for her big day.

"Are you kidding?" she says. "There's been no time!"