From Press Release:
Tonight, the wait is finally over. Gears 5 will be available tonight, immediately following the television debut of the launch ad, “The Chain,” during the NFL Season opener, the Green Bay Packers @ Chicago Bears on NBC.
This begins the four-day early access period for Gears 5 Ultimate Edition owners and Xbox Game Pass Ultimate members who may begin playing four days before the game’s worldwide release on September 10. For those eager to get started immediately the full game download is available now in advance of the game’s release. As part of a special offer, new subscribers can join Xbox Game Pass Ultimate today and get their first two months for $2 now through September 30.
Retail copies of Gears 5 Ultimate Edition will be available for pick-up from participating retailers beginning at 9 pm local time. The Gears 5 Limited Edition Console Bundle, which includes the Ultimate Edition version of the game, will also be available.
For reference, a complete list of early access launch times by region can be found here.