The double celebration is being marked by Adeeqa Parveen Ali, 31, and her partner Faisal Imran, from Livingston, West Lothian, who arrived at St John’s Hospital on Christmas Eve, almost one month ahead of the expected due date.

Jami, who weighed in at 5lb 8oz, was born at 11.44pm on Christmas Eve, but his sister, tipping the scales at 4lb 2oz, was born almost one hour later at 12.27am on Christmas Day.

Both, with their mother, will stay in hospital for a few days, staff said, but hope to be out by Hogmanay.

Jami (lefft) and his sister Rubi were born each side of midnight at NHS Lothian's St John's Hospital to Adeeqa Parveen Ali, 31, and her partner Faisal Imran, from Livingston. PIC: NHS Lothian/PA Wire

Rumi came within minutes of being the first Christmas baby in Scotland, but was pipped to the post by Eliza Shearer in Aberdeen.

Maja Shearer, 27, and Jason Shearer, 28, dashed to Aberdeen Royal Infirmary on Christmas Eve as Eliza made an appearance a few days before she was due.

The change in plans, Mr Shearer said, meant Mrs Shearer’s parents, who were visiting from Poland, had to host the traditional Christmas Eve celebration without the expectant parents in their home.

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“Maja’s Polish, so we celebrate Christmas on Christmas Eve and British Christmas on Christmas Day, and Maja’s folks are over just now so they had to host Christmas dinner without us last night because we’re here, and they’ll probably get a nice Christmas dinner again today,” said Mr Shearer, a planner in the oil and gas industry.

Asked what he was doing when Maja went into labour, Mr Shearer said: “Sleeping – it was 5.30am. She woke me up at 5.30am, it was all quick, then it was quite slow – 5.30am yesterday morning, in here at 7am then we were here the whole day.”

Eliza could well be the first Christmas baby in Scotland this year, arriving at 12.18am and weighing 7lbs 8oz.

Mr Shearer, from Aberdeen, said it was “touch and go” whether she would be born before or after midnight.

The new father also extended his gratitude to the midwifery staff at the hospital, who he said had been “absolutely amazing”.

Elsewhere, Lauren Haddock and Jordan Hamill welcomed their son Finley at 12.33am at the Queen Elizabeth University Hospital in Glasgow.

The new arrival, his parents’ firstborn, weighed in at 7lb 8oz.

Meanwhile, at 12.59am on Christmas Day, Lexi was born to Marissa McLean, 31, and Kevin Lothian, 33, from Edinburgh.

Weighing 7lb 8oz, Lexi arrived at Edinburgh Royal Infirmary.

At 1.24am, Ashleigh Gillon and Dean Halup welcomed their baby boy at Forth Valley Hospital, weighing 7lb 6oz.

The couple, from Clackmannanshire, are still deciding on a name.

In St John’s Hospital in Livingston, Claire Gray, 35, and her partner Kyle, 36, welcomed a baby girl.

The couple, from Bathgate, West Lothian, are still deciding on a name for the little one, who was born just after 7am and weighed 8lbs 8oz.

Christmas twins born each side of midnight in double blessing at Scottish hospital