Anthony Joshua faces perhaps the biggest test of his career so far when he defends his three versions of the world heavyweight championship against former undisputed cruiserweight king Oleksandr Usyk.
The fight is expected to be a very evenly-matched one, with a number of possible intangible factors that could decide the London superfight.
For more information on when the broadcast starts in your country, and when exactly the main event will begin in your country, find everything you need to know below.
The Joshua vs. Usyk card takes place on Saturday, September 25. The main card begins at 6 p.m. BST in the UK. They are expected to make their walks to the ring at around 10:10 p.m. BST, depending on the outcome of the earlier main card fights.
Here are the local times for the fight card and the heavyweight title main event in various key cities across the world, and of course for other cities and countries that share a timezone with one of those listed.
Sky Sports Box Office will be showing the fight in the UK and can be streamed online as well as on television.
Outside the UK, DAZN have the rights to the fight in 170+ countries. Click here to see if your country is one of them, and click here to find out how to sign up to DAZN.
The card will take place at the Tottenham Hotspur Stadium in London, England. This will be the first time both Joshua and Usyk have fought at Tottenham's new stadium. Joshua last fought Kubrat Pulev at Wembley Arena and Usyk most recently appeared at the very same venue in his last bout against Derek Chisora.
Nationality: British
Born: Oct. 15th, 1989
Height: 6ft 6ins
Reach: 82ins
Total Fights: 25
Record: 24 -1-0 with 22 KOs
Nationality: Ukrainian
Born: Jan. 17th, 1987
Height: 6ft 3ins
Reach: 78 inches
Total Fights: 18
Record: 18-0 (13 KOs)