Officials with the city clerk's office said the date, which was made available for wedding reservations 90 days before Friday, quickly filled up because people considered the triple eights to be a sign of good luck, the San Francisco Chronicle reported Thursday.

"There were people camping out on our reservation system, waiting for the clock to hit midnight," said Karen Hong Yee, director of the clerk's office. "We tripled our current capacity and are doing 128 weddings that day."

"Sometimes New Year's Eve gets popular, and Valentine's Day is always big, but we haven't seen this much of a demand in a while," she said.