LONDON -- When it's Harry Potter's son's first day of school,sex video! the world obviously needs to drop everything.

Indeed, Albus Severus Potter's first day at Hogwarts is something worth celebrating. The only problem is, fans have to wait one more year before they can celebrate.

On Thursday, J.K. Rowling tweeted, rallying fans to get excited about Albus Potter's first day at school which was -- according to her -- happening right now. That tweet has since been deleted.

The #19YearsLater hashtag is a reference to Harry Potter and the Cursed Child — the script based on the play by Jack Thorne, J.K. Rowling and John Tiffany -- which is set 19 years after Voldemort's defeat at the Battle of Hogwarts.

Many fans were taken by surprise and a flurry of activity ensued as they calculated when the Battle of Hogwarts occurred.

While fans battled it out, Rowling chimed in to reassure fans and let them know that she'd made a mistake...

Fans weren't convinced, however. Many were still adament that Albus was starting school in 2016.

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Other stalwart fans weren't convinced, and battled on trying to convince people that Albus' first day at Hogwarts will be in 2017...

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Some fans were just glad that Rowling had clarified...

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Rowling, we are officially confused.