I realize this is a borderline SO question. I am trying to figure out which of the examples on D3JS most closely resembles a scheduler or Gantt chart so I can use it in our app.
I think bullet charts or box plots are closest.
Any other ideas?
D3.JS does not have built in visualization types. If something doesn't exist you can always create it, and if something doesn't do exactly what you want to do it can be modified. You don't want to pick something that is "close enough" -- if a user is expecting a Gantt chart, a bullet chart (for example) will only cause confusion.
If the visualization you're looking for doesn't have an example, start playing with package to get the data looking the way you want!
There are a few Gantt chart specific examples already on the D3 website:
All are exampled here: