NTP

These commands can be run by sroot:

/sbin/service ntpd status
/sbin/service ntpd start
/sbin/service ntpd stop

These commands can be run by dadmin

/usr/sbin/ntpdate -d -q 192.168.1.1
/usr/sbin/ntpdc
/usr/sbin/ntpq -p
/usr/sbin/ntptime
/usr/sbin/ntptrace 192.168.1.1
/usr/bin/ntpstat

/usr/sbin
-rwxr-xr-x  1 root root  431048 Apr 20  2006 ntpd
-rwxr-xr-x  1 root root   45908 Apr 20  2006 ntpdate
-rwxr-xr-x  1 root root   86940 Apr 20  2006 ntpdc
-rwxr-xr-x  1 root root   76732 Apr 20  2006 ntpq
-rwxr-xr-x  1 root root   16276 Apr 20  2006 ntptime
-rwxr-xr-x  1 root root    1837 Apr 20  2006 ntptrace

/usr/bin
-rwxr-xr-x  1 root root      6032 Apr 20  2006 ntpstat

Man pages in linux to explain options and usage:
man ntpd
man ntpdate
man ntpdc
man ntpq
man ntptime

man ntptrace