Premier League clubs can launch their summer spending sprees in earnest on Thursday when the transfer window opens.
Domestic dealing can officially begin at one minute past midnight, giving buyers and sellers 12 weeks to do their business, in line with FIFA regulations, before the window closes on the new earlier date of August 9.
However, international transfers cannot be processed until June 8.
A statement on the governing body’s official website, www.premierleague.com, said: “The summer transfer window for Premier League clubs will open at 00:01 on May 17 2018.
“Before then, clubs are able to agree deals for the acquisition of players but, in the case of a domestic transfer, the paperwork cannot be processed until after midnight on May 17, once the window opens.
“The transfer of players from another national association may take place once the FIFA Transfer Matching System (TMS) opens at midnight on June 8 2018.
“This means that any international transfers cannot be processed until the FIFA TMS transfer window opens.
“As agreed by the clubs in September 2017, the summer transfer window will close at 17:00 BST on Thursday, August 9 2018.”
The Premier League has brought forward the deadline in a bid to avoid the kind of disruption which surrounded the likes of Jamie Vardy and Gylfi Sigurdsson last year with the season already under way.
Fourteen of the 20 top-flight clubs at the time voted in favour of the shortened period.
It was a move which was supported by Manchester United boss Jose Mourinho.
He said: “As a football man, as somebody who wants to work with the team, work with players, I would prefer the window to close as soon as possible.”
Newcastle counterpart Rafael Benitez has insisted there will still be more than enough time for clubs to get their business done.
He said: “You had three months to do whatever you wanted to do, now you have two months. You can do whatever you want in two months.”
The Football League, whose window for permanent signings has already reopened, has also confirmed they will comply with the August 9 pre-season deadline.