Yes.
With default options, a typical runtime on a typical disk is three or four hours, but performance varies greatly between drive and controller combinations.
DBAN fully uses all I/O capacity on most computers. There is no way to reduce wipe time and still fully wipe the media. Similar products may appear to run faster than DBAN because they silently fail at BIOS addressing limits, or because they just do a firmware lock.
You can purchase a database of performance statistics from us to plan your consulting job.