Dates for new notes are incorrect in the graph view. I have a page reference on a daily note (10/29). When I look at the graph for that page, however, it links to 10/28. This seems to be true for older pages linked to older daily notes as well.
The "backlinks" at the bottom of these notes does read the correct date.
In addition, the graph view that shows up for the daily note itself shows the date as one day prior, even though the date is correct at the top of the note.