Sunday will be one of the busiest days in this year's wedding calendar with some couples hoping the date will bring them luck while others just think 10/10/10 will make their anniversary easier to remember.
Some register offices are even opening on a Sunday for the first time after couples asked if they could be married on the special date.
Ngaryan Li, 28, from Wigan, was keen to marry fiance Steven Higham, 26, on October 10 this year and searched until she found a venue which could offer the special date.
"I'm of Chinese origin and it's seen as a very good date. It means the perfect day," she said.
Miss Li, whose parents came to the UK from Hong Kong around 35 years ago, added: "I was ringing round quite a lot of places, then Manchester Register Office said they were going to be open. It wasn't my first choice - of somewhere local - but the main thing was offering the date."
Miss Li, a solicitor at Stephensons in St Helens, Merseyside, met her fiance when she took over his job and they spent a handover period together. He now works as a legal executive in the firm's Wigan branch.
They have been planning their wedding for around a year and Miss Li said: "I feel very lucky to get that date."
It is only the third time that Manchester Register Office, which has held weddings since 1837, has opened on a Sunday and six couples have arranged to get married there.
Chichester Register Office, in West Sussex, is opening for the first Sunday ever.
A spokesman for West Sussex County Council said it was a "in response to popular demand".