AFC Bournemouth will head to the Emirates on Saturday, May 3, with the original kick off time of 3pm moved back to 5.30pm.
The game will be broadcast on Sky Sports.
The Cherries will be hoping to complete the league double over Arsenal for the first time in their history.
This comes after Andoni Iraola’s side beat the Gunners 2-0 at Dean Court in October.
The hosts condemned the London side to their first defeat of the season, thanks to second half goals from substitutes Ryan Christie and Justin Kluivert.
Bournemouth were on top for much of the game and were boosted when William Saliba was sent off after half an hour for bringing down Evanilson when the Brazilian would have been through on goal.
Christie opened the scoring after 70 minutes after a fantastic corner routine, before Kluivert converted from the penalty spot after David Raya brought Evanilson down.