debian-pi/raspbian-ua-netinst — pull request #139 by hleitzell (2014-10-11 19:14:19+00:00)
Title: Replace rdate with BusyBox ntpd applet

It isn't documented well but ntpd exists within BusyBox.

http://www.busybox.net/tinyutils.html - "BusyBox starting from 1.16.x also acquired ntpd applet."