There is a ntp.conf file in /etc but I'm not knowledgeable enough to know how to configure that file to my needs.

# /etc/ntp.conf,configuration for ntpd; see ntp.conf(5) for help


driftfile/var/lib/ntp/ntp.drift


# Enable this if youwant statistics to be logged.
#statsdir/var/log/ntpstats/statistics loopstats peerstats clockstats
filegen loopstatsfile loopstats type day enable
filegen peerstatsfile peerstats type day enable
filegen clockstatsfile clockstats type day enable


# You do need totalk to an NTP server or two (or three).
#serverntp.your-provider.example
# pool.ntp.org mapsto about 1000 low-stratum NTP servers. Your server will
# pick a differentset every time it starts up. Please consider joining the
# pool:<http://www.pool.ntp.org/join.html>
pool0.debian.pool.ntp.org iburst
pool1.debian.pool.ntp.org iburst
pool2.debian.pool.ntp.org iburst
pool3.debian.pool.ntp.org iburst


# Access controlconfiguration; see /usr/share/doc/ntp-doc/html/accopt.html for
# details. The webpage <http://support.ntp.org/bin/view/Support/AccessRestrictions>
# might also behelpful.
# Note that"restrict" applies to both servers and clients, so aconfiguration
# that might beintended to block requests from certain clients could also end
# up blockingreplies from your own upstream servers.
# By default,exchange time with everybody, but don't allow configuration.
restrict -4 defaultkod notrap nomodify nopeer noquery limited
restrict -6 defaultkod notrap nomodify nopeer noquery limited


# Local users mayinterrogate the ntp server more closely.
restrict 127.0.0.1
restrict ::1


# Needed for addingpool entries
restrict sourcenotrap nomodify noquery


# Clients from this(example!) subnet have unlimited access, but only if
# cryptographicallyauthenticated.
#restrict192.168.123.0 mask 255.255.255.0 notrust
# If you want toprovide time to your local subnet, change the next line.
# (Again, theaddress is an example only.)
#broadcast192.168.123.255
# If you want tolisten to time broadcasts on your local subnet, de-comment the
# next lines. Please do this only if you trust everybody on the network!
#disable auth
#broadcastclient