[Bug 1905688] Re: systemd-timesyncd.service: Timed out waiting for reply from NTP server

[Marjan]

P.S. I tried to reproduce it, but I cannot set time beyond 2036 (due to
int limit problem), how did you acheive it?

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Title:
  systemd-timesyncd.service: Timed out waiting for reply from NTP server

Status in systemd package in Ubuntu:
  New

Bug description:
  systemd-timesyncd.service fails to correct time if the system time is
  later than February 7, 2036.

  Image: ubuntu-20.10-desktop-amd64.iso
  systemd: 246.6-1ubuntu1

  $ timedatectl status
                 Local time: Fri 2038-11-26 07:58:16 UTC
             Universal time: Fri 2038-11-26 07:58:16 UTC
                   RTC time: Fri 2038-11-26 07:58:17    
                  Time zone: Etc/UTC (UTC, +0000)       
  System clock synchronized: no                         
                NTP service: active                     
            RTC in local TZ: no 

  ubuntu at ubuntu:~$ sudo systemctl status systemd-timesyncd.service 
  ● systemd-timesyncd.service - Network Time Synchronization
       Loaded: loaded (/lib/systemd/system/systemd-timesyncd.service; enabled; vendor preset: enabled)
       Active: active (running) since Fri 2038-11-26 07:36:55 UTC; 7min ago
         Docs: man:systemd-timesyncd.service(8)
     Main PID: 1257 (systemd-timesyn)
       Status: "Idle."
        Tasks: 2 (limit: 9283)
       Memory: 1.8M
       CGroup: /system.slice/systemd-timesyncd.service
               └─1257 /lib/systemd/systemd-timesyncd

  Nov 26 07:39:09 ubuntu systemd-timesyncd[1257]: Timed out waiting for reply from 91.189.94.4:123 (ntp.ubuntu.com).
  Nov 26 07:39:19 ubuntu systemd-timesyncd[1257]: Timed out waiting for reply from 91.189.89.198:123 (ntp.ubuntu.com).
  Nov 26 07:40:34 ubuntu systemd-timesyncd[1257]: Timed out waiting for reply from 91.189.91.157:123 (ntp.ubuntu.com).
  Nov 26 07:40:44 ubuntu systemd-timesyncd[1257]: Timed out waiting for reply from 91.189.89.199:123 (ntp.ubuntu.com).

  
  There is no issue with ntpdate:

  ubuntu at ubuntu:~$ sudo ntpdate -v ntp.ubuntu.com
  26 Nov 08:16:21 ntpdate[8926]: ntpdate 4.2.8p12 at 1.3728-o (1)
  26 Nov 08:16:30 ntpdate[8926]: step time server 91.189.91.157 offset -567993599.624839 sec
  ubuntu at ubuntu:~$ date
  Thu Nov 26 08:16:33 AM UTC 2020

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