Here's a list of the round dates for the FA Trophy 2017/18
Sat Oct 7th Preliminary Round
Sat Oct 28th First Qualifying Round
Sat Nov 11th Second Qualifying Round
Sat Dec 16th: First Round
Sat Jan 13th: Second Round
Sat Feb 3rd: Third Round
Sat Febb 24th: Fourth Round
Sat Mar 24th: Semi-Final
Sun May 20th: Final