libexec/bootpd/rtmsg.c
Set up the time an entry should expire from the arp cache as a function of seconds returned from gettimeofday.
libexec/bootpd/tzone.c
Uses gettimeofday to aid in the determination of our timezone.
libexec/rbootd/rbootd.c
Use gettimeofday to determine if a connection has timed out.
libexec/rbootd/rmpproto.c
Uses it to timestamp the last time the connection was active.
libexec/rpc.rquotad/rquotad.c
This appears to only be a delta. Only the seconds field is used.
libexec/rpc.rstatd/rstat_proc.c
libexec/rpc.sprayd/sprayd.c
Used as a delta between the CLEAR and GET actions.
libexec/talkd/announce.c
libexec/talkd/table.c