Checked the admin interface:
Top Permitted Domains
Domain Hits Frequency
0.irobot.pool.ntp.org 473
1.irobot.pool.ntp.org 470
2.irobot.pool.ntp.org 460
3.irobot.pool.ntp.org 459
graph.facebook.com 189
www.google.com 136
query.yahooapis.com 132
2.debian.pool.ntp.org 131
3.debian.pool.ntp.org 117
android.clients.google.com 116
So it says it allows them through, will start pi with pihole disabled as test
pi@squid:~ $ timedatectl
Local time: Sun 2018-09-09 17:20:04 AEST
Universal time: Sun 2018-09-09 07:20:04 UTC
RTC time: n/a
Time zone: Australia/Melbourne (AEST, +1000)
Network time on: yes
NTP synchronized: no
RTC in local TZ: no
pi@squid:~ $ systemctl status systemd-timesyncd.service>output
Warning: systemd-timesyncd.service changed on disk. Run 'systemctl daemon-reload' to reload units.
pi@squid:~ $ cat output
● systemd-timesyncd.service - Network Time Synchronization
Loaded: loaded (/lib/systemd/system/systemd-timesyncd.service; enabled; vendor preset: enabled)
Drop-In: /lib/systemd/system/systemd-timesyncd.service.d
└─disable-with-time-daemon.conf
Active: active (running) since Sun 2018-09-09 17:17:10 AEST; 3min 12s ago
Docs: man:systemd-timesyncd.service(8)
Main PID: 241 (systemd-timesyn)
Status: "Connecting to time server 46.163.88.237:123 (1.arch.pool.ntp.org)."
CGroup: /system.slice/systemd-timesyncd.service
└─241 /lib/systemd/systemd-timesyncd
Sep 09 17:18:42 squid systemd-timesyncd[241]: Timed out waiting for reply from 85.236.36.4:123 (3.debian.pool.ntp.org).
Sep 09 17:18:53 squid systemd-timesyncd[241]: Timed out waiting for reply from 78.47.226.109:123 (3.debian.pool.ntp.org).
Sep 09 17:19:03 squid systemd-timesyncd[241]: Timed out waiting for reply from 5.9.80.113:123 (3.debian.pool.ntp.org).
Sep 09 17:19:14 squid systemd-timesyncd[241]: Timed out waiting for reply from 193.141.27.1:123 (0.arch.pool.ntp.org).
Sep 09 17:19:24 squid systemd-timesyncd[241]: Timed out waiting for reply from 141.30.228.4:123 (0.arch.pool.ntp.org).
Sep 09 17:19:34 squid systemd-timesyncd[241]: Timed out waiting for reply from 185.233.106.45:123 (0.arch.pool.ntp.org).
Sep 09 17:19:44 squid systemd-timesyncd[241]: Timed out waiting for reply from 94.130.183.105:123 (0.arch.pool.ntp.org).
Sep 09 17:19:55 squid systemd-timesyncd[241]: Timed out waiting for reply from 138.68.126.106:123 (1.arch.pool.ntp.org).
Sep 09 17:20:05 squid systemd-timesyncd[241]: Timed out waiting for reply from 131.188.3.221:123 (1.arch.pool.ntp.org).
Sep 09 17:20:15 squid systemd-timesyncd[241]: Timed out waiting for reply from 165.227.159.15:123 (1.arch.pool.ntp.org).
Had to output to file, as it goes nuts as naked command for some reason