"You're the Scorpion King. Of course you hate homework."
-- Craig Bowker Jr (CC3.4)
Scorpius Malfoy searches the Hogwarts Library for answers to why history has changed so drastically. He realises from a remark made by Craig Bowker Jr that Professor Snape is still teaching at the school (CC3.4).
Soon after the previous event, perhaps the next day, early October 2020
This event takes place during the Scorpion King timeline, as described in the essay "Albus Potter and the lesson in Quantum Mechanics" by Nick Moline.
From his reaction, it seems that the "real" Scorpius likes doing his own homework, unlike the Scorpion King (CC3.4).
From the Web
Pottermore: Harry Potter and the Cursed Child
The theatre production opened in the West End of London at the Palace Theatre on 31 July 2016, with Anthony Boyle in the role of Scorpius Malfoy and Jeremy Ang Jones as Craig Bowker Jr: Harry Potter and the Cursed Child, Parts One and Two