The Division's first paid expansion, Underground, will release for Xbox One on June 28, with pre-load beginning three days earlier on June 25, a listing on Amazon has revealed.
Ubisoft had previously said the content would launch this month.
"Code will be delivered starting on 25 June 2016 and you will be able to download it to your Xbox One but the game will not be playable until 00:01 on 28 June 2016," states Amazon.
Both Underground and the second expansion, Survival, will arrive on Xbox One 30 days earlier than other platforms. The third expansion, Last Stand, is not a timed exclusive.
Expansion I: Underground
Available in June, this first major expansion lets players explore the uncharted underworld of New York City. Players will chase deadly enemies with up to three other Agents through an endless maze of tunnels and subways.
Expansion II: Survival
Available this summer, this expansion will challenge players to survive as long as possible by gathering essential supplies in a very hostile environment.
Expansion III: Last Stand
Next winter, a new threat rises as players and their squad must prepare to defend against a relentless foe.