London Euston rail station's staff are already awake and working hard preparing meals for the 200 homeless people they will host for Christmas dinner today.
Overnight the station was transformed and filled with tables and chairs.
Volunteers are using the hashtag #EustonChristmas to keep everyone updated on the festive event.
The first guests will arrive at around 11am for food and will be given a goody bag containing presents, clothes, and toiletries.
Around 200 homeless people attended the event at Euston station today
Guests will be greeted by huge trays of mince pies handed out by volunteers
Around 45 selfless volunteers are giving up their Christmas day to prepare and serve a four-course meal of soup, smoked salmon, a roast dinner and a Christmas pudding for afters.
Steve Naybour, a Network Rail engineer who helped come up with the idea, told the BBC: 'We're going to give them the best day that they probably didn't expect a few days ago.
'It's amazing to see the concourse looking so festive, which would normally be packed with commuters.'
Children from local schools have written 200 Christmas cards for the homeless guests, addresses 'To friend'.
He added: 'We've had 45 companies that have come to us - Pret, Leon - we've had really, really nice support from companies giving us thermal socks, giving us hats, giving us coats, giving us sleeping bags, jeans, we've got an awful lot from companies coming forward.'
Dozens of volunteers from the rail company, St Mungo's homelessness charity and Streets Kitchen are giving up their time to ensure the event runs smoothly.
One Twitter user said: 'This is amazing! Showing that Christmas truly is about love and giving.'
The Rapid Relief Team giving out sleeping bags, and the guests will be given gift bags packed by volunteers from Network Rail
One Twitter user said: 'Heartwarming wonderful. Let it grow to other stations in Uk
Another said: 'Heartwarming wonderful. Let it grow to other stations in UK.'
A third user said: 'Yes, it's totally unacceptable that anyone is homeless in 2017 & this is not a permanent solution. But as a beautiful thing to do for the day, what an amazing act. Congratulations to all involved.'
Rebecca Sycamore, director of development at St Mungo's, said: 'We all can see in our communities that homelessness is increasing and that people are really struggling.
'There's lots of issues that surround that, poor mental health, physical health, relationship breakdown, and obviously it's really, really difficult time.
'Being homeless is tough enough, but at Christmas I think we can all try and imagine what it would be like not to have anything and really understand why it's so important that events like this are happening.'
Plenty of restaurants and cafés have opened their doors to the homeless and the lonely today.
The Alexandra in Wimbledon have continued their festive tradition of offering free food and drinks for anyone who will be alone at Christmas 'because they like doing it'.
The Classic Fish Bar and Kebab House in Birmingham are giving out free meals for the elderly and the homeless today between 1 and 4pm.
Steve Naybour, a Network Rail engineer who helped come up with the idea, told the BBC: 'We're going to give them the best day that they probably didn't expect a few days ago'