Every year, on 1 September, fans gather together all around the world to celebrate the day that students return to Hogwarts. This weekend was no exception.

Here’s how our Wizarding World friends commemorated the big moment.

Jude Law and Eddie Redmayne join the countdown at King’s Cross Station

Edith, Eddie and Jude count down to 11am

Fantastic Beasts actors Jude Law and Eddie Redmayne (who play Albus Dumbledore and Newt Scamander respectively in the upcoming second film) gave fans quite the surprise at King’s Cross Station on Saturday – turning up to join the famous countdown to 11 o’clock. As you can imagine, the fans who had congregated there were rather excited about the whole thing. You can catch-up on the whole story here on Pottermore.

While a Knight Bus travelled up and down the UK picking up lucky fans

The Knight Bus arrives in London.

If you spotted a big purple, magical-looking bus trundling around the UK last week, don’t worry, you’re not imagining things – there really was a specially recreated Knight Bus going on a little UK tour to celebrate the big 1 September moment.

From Edinburgh to London, the Knight Bus went on a merry journey picking up lucky fans – and was properly decked out to resemble the famous triple-decker vehicle you’ll recognise well from Prisoner of Azkaban. Yes, this does include beds.

We got a new Fantastic Beasts: The Crimes of Grindelwald featurette

With all the 1 September hullabaloo, we also got to see a new behind-the-scenes video from the upcoming Fantastic Beasts film, featuring J.K. Rowling talking about the one and only Hogwarts.

While the cast delivered some special messages

Ezra Miller, Eddie Redmayne, Katherine Waterston, Dan Fogler, Alison Sudol (holding a hella lot of baby Nifflers!) Zoë Kravitz, Claudia Kim and Callum Turner saw in the big day with a little message to everyone. Happy Back to Hogwarts day to you too, guys.

Harry Potter and the Cursed Child’s London production got the cake in

1 September is where we find ourselves at the beginning of the play, Harry Potter and the Cursed Child, with Albus Potter about to embark on his first Hogwarts journey. This could only mean one thing for the London production – cake. And lots of it.

And so did New York

Not to be out-done on the cake front, the New York cast of Cursed Child also celebrated with their own, styled like a Hogwarts letter, naturally. As beautiful as it looks, we would still eat it immediately.

The Cursed Child New York cast celebrate Back to Hogwarts Day

Cursed Child writer Jack Thorne got sentimental

Meanwhile, award-winning screenwriter and playwright, who devised Cursed Child’s story with J.K. Rowling and John Tiffany, posted this lovely message about the iconic day.

And Cursed Child Australia revealed their brand-new cast

And it wasn’t just London who got all the fun. Over in Australia, the Cursed Child cast were revealed for the first time. You can read all about the production, as well as a look at the cast, here.

The Studio Tour in Leavesden went full steam ahead with their celebrations

Back in London, Warner Bros. Studio Tour London, which exhibits all the sets, costumes and props from the Harry Potter films, had their beautifully recreated Hogwarts Express emit steam for the biggest date on the Wizarding World calendar.

And Universal Studios in Orlando tweeted their Hogwarts love too

Their replica of the great castle is always a stunning scene.

Bloomsbury commemorated the day with one of Jim Kay's beautiful illustrations

The paperback edition of Jim Kay's illustrated edition of Philosopher's Stone is out soon.

And MinaLima revealed a gorgeous new Back to Hogwarts display

Design dream team MinaLima (comprised of Eduardo Lima and Miraphora Mina) got in on the action with this beautiful display of Hogwarts letters. The duo designed the iconic pieces of post for the original films. Let’s hope no owls tried to break in and deliver them!

Phew.

And we’re sure you were all doing something special for the huge day too. Same time next year, everybody?