timedatectl- NTP Sync cannot set to yes

Question

I tried so much different things of installing ntpq or other stuff but nothing works.

I dont can change it to yes. I hope someone can help here.

I had Ubuntu 16.04 This is my terminal output of the Command timedatectl

      Local time: Tue 2017-06-27 20:52:45 CEST
  Universal time: Tue 2017-06-27 18:52:45 UTC
        RTC time: n/a
       Time zone: Europe/Berlin (CEST, +0200)
 Network time on: yes
NTP synchronized: no
 RTC in local TZ: no

Also tried this tutorial: https://www.digitalocean.com/community/tutorials/how-to-set-up-time-synchronization-on-ubuntu-16-04

But when i make sudo timedatectl set-ntp on it only changes Network time on: yes/no.

Also installed ntp. But from the command sudo ntpq -p i get this error

ntpq: read: Connection refused

It seems ntpd is not started after installation. Try running sudo ntpd -n to see if it starts running and the configuration file is OK (option -n means not to fork and to log to the calling terminal). — ridgy, Jun 28 '17 at 11:31
Addition: There is nothing wrong with the output of timedatectl. If ntpdis not installed, NTP synchronized: no is OK (see https://help.ubuntu.com/lts/serverguide/NTP.html#timesyncd) — ridgy, Jun 28 '17 at 12:25

score 31 · Answer 1 · answered Jun 26 '18 at 08:36

31

When the clock is too much desincronized (more than 3 seconds?) it won't get update automatically. In order to force it manually:

sudo service ntp stop
sudo ntpd -gq ← here you can see it's getting sync
sudo service ntp start

Confirm everything's ok
timedatectl
Better explanation and all the credit here

answered Jun 26 '18 at 08:36

Alvaro de Lucas

578
4
11

1

Yes !!! Finally a working solution. I'm on ubuntu 18.04 (ubuntu-minimal) – realtebo Aug 15 '18 at 00:27
1

this worked for raspbian stretch for rpi2 too! thanks – Aswn Sep 16 '18 at 05:50
Worked for Raspberry pi 3 with stretch too. – Pradip Shenolkar Feb 20 '19 at 07:40
4

for my install of 18.04 there is no ntp and should not be. What worked was simply to restart the service sudo systemctl restart systemd-timesyncd – DKebler May 02 '19 at 14:14

score 7 · Answer 2 · edited Nov 16 '17 at 05:01

7

After installing ntp

sudo apt install ntp

in the output of timedatectl

NTP synchronized: yes

the time is immediately automatically synchronized.

edited Nov 16 '17 at 05:01

Andrew Tapia

929
6
19

answered Nov 15 '17 at 21:42

Ivan Dunaienko

71

1

I still had to reboot after installing ntp – sreimer Apr 23 '18 at 13:39
1

following this for 18.04 and beyond is a bad idea things have changed. see my comment above to restart the systemd service – DKebler May 02 '19 at 14:14

timedatectl- NTP Sync cannot set to yes

2 Answers2

Linked