Ye Xinping, deputy director of the civil affairs bureau of Guangzhou's Yuexiu district, said more than 400 couples had booked a marriage registration there for Monday. More than 30 workers were transferred to the Yuexiu bureau and 20 volunteers were sought for help.

"We will work until the last couple get registered," Ye said.

Statistics from the marriage registration offices in Shanghai also showed that 680 couples had booked to tie the knot on Valentine's Day, which is at least twice the number on regular working days. The total number is expected to exceed 1,000, as many others will go to the offices without a reservation.

Traditionally, Chinese prefer "lucky number" days or festivals to marry, move to a new home or do other "great" things.

But for many single young people, Valentine's Day was uncomfortable.

"I'm afraid of Valentine's Day. Every year my friends ask 'Why are you still single?'" said white-collar worker Du Jingjing, 27.

"My mom talked about this issue in a very serious manner several days ago, urging me to find a boyfriend and get married soon. I am facing great pressure," she said.