For DF, hers was at 10pm for 7oz.
For 3 days, gave it at 9.30 at 6oz (added 1oz to first morning feed) then for 3 days, gave it at 9.00 at 5oz (added 1oz to second day feed, which is late morning).
Then, I got fed up with this gradual plan and went cold turkey on the same night that we moved her to her own bedroom (as I didn't have a chair set up in her bedroom and I was worried about the DF being a mess). She woke up that night at 10.30 (got her back to sleep with a dummy), then following night at 11.30 (again, got her back to sleep with dummy), and third night, she didn't wake up until 5am (which is usual for her, and got her back to sleep with dummy as usual).
When I dropped it cold turkey, I added 1oz to her third feed of the day. So now, she gets 3 milk feeds a day, for a total of 20oz (8, 6, 6), instead of 3 feeds + DF (for a total of 24oz: 7, 5, 5, 7).