I have been asked for dates of the various rounds of the competition, by several people.
Here is the FA calendar for the FA Vase:
09/01/16 4th round
30/01/16 5th round
20/02/16 6th round (quarter-final)
12/03/16 Semi-Final 1st leg
19/03/16 Semi-Final 2nd leg
However, I confidently predict that some ties will overlap into the date of the following round due to the many postponements experienced recently.