The important thing to remember with this method is that the U.K. is by far the most active region in terms of FIFA 15 Ultimate Team players. U.K. players dominate the trading market and provide the most activity. It is safe to assume that they are the "average" FUT trader when buying and selling on the market. What is useful about this is knowing that you can scoop up the best deals when most people in the U.K. are asleep, between 1am GMT to early morning. On average, players will cost less, so take advantage of this.
Another thing to consider is that you will have the most luck with this if you bid for players. A lot of players will sell for under their average price because there isn't a lot of competition between bidders at this time.
Once you've bought players for a low amount, you would be actual in bold that the antipodal of this approach is true. The FIFA 15 Ultimate Team bazaar is the a lot of alive at about 6pm GMT, if humans in the U.K. are home from academy and plan and accept time to play FIFA. Because there is the a lot of antagonism to buy players on the bazaar at this time, you should aim to accept your bargain catastrophe at this time to aerate your profit.