VM with Win time gets back with 2h often!

[Bidi]

Hello guys,

I just notice a problem because some of my customers complain about this and truly we never had this problem on proxmox 3.

We use proxmox 5 on some of ower servers for 2mo now and i notice this problem only on them and not on the old servers with proxmox 3, and i truly dont understand why or how to fix it, i searched and nothink.

So i install on VM Win 7 or Win 10 or Win Server i setup the time, date, and the timezone all oka, after some time i think 2-3 h the time get back with 2h :| instead to be 12:50 is 10:50

I deactiated even the sync timezone, setup the location, changed the timezone from +2 to +4 i got the same problem.

I noticed this time change even if i reboo the vm :|

I dont know why and i never had this problem, and i play with proxmox and vms.. for more themn 3-4 years now.

Can anyone please give me a hint or sompting how to fix this

Thank you.

 

[wolfgang]

Hi,

PVE does not sync the time with KVM guest.
Only at the start time of the kvm process get the host time.

 

[Bidi]

Hi,

PVE does not sync the time with KVM guest.
Only at the start time of the kvm process get the host time.

My win kvm i made it to check this problem i didnt reboot for 1 week now and it keeps changing the time, i put it to real time after some time it gets back

 

[Bidi]

Dose anyone have any solution for this ? It started to be a big mass with the time for all the customers on proxmox 5

 

[Stoiko Ivanov]

* Which NTP-Server do you use for the Windows VM? (where is it running, virtualized?, what is its timezone time setting?)
* What's the Windows VMs config? (please post in code - tags)
* Is the time on the Proxmox hypervisor ok?

 

[Bidi]

* Which NTP-Server do you use for the Windows VM? (where is it running, virtualized?, what is its timezone time setting?)
* What's the Windows VMs config? (please post in code - tags)
* Is the time on the Proxmox hypervisor ok?

root@:~# timedatectl
Local time: Tue 2019-02-19 12:11:34 EET
Universal time: Tue 2019-02-19 10:11:34 UTC
RTC time: Tue 2019-02-19 10:11:34
Time zone: Europe/Bucharest (EET, +0200)
Network time on: yes
NTP synchronized: yes
RTC in local TZ: yes

root@:~# date
Tue Feb 19 12:19:38 EET 2019
root@:~#

root@:~# hwclock
2019-02-19 10:29:06.198270+0200


bootdisk: ide0
cores: 4
ide0: local:171/vm-171-disk-0.qcow2,cache=writeback,size=100G
ide2: cdrom,media=cdrom
localtime: 1
memory: 6144
name: VPS
net0: e1000=7A:C6:B0:2C:82:07,bridge=vmbr0
numa: 0
ostype: other
smbios1: uuid=4b5017eb-9ed2-468e-a2b5-822a66f39f46
sockets: 1



The date, time, timezone is set corect to proxmox
I tryed even with timedatectl set-local-rtc 0

The server is in Romania / Bucharest.
What i dont understand i have this problem only on the 3 servers (cluster) with proxmox 5
And on other with promox 3 they ar not in cluster no, never.
I enter on the VPS, change the time, after a couple of time it changes back again with 2h.
Or even when i reboot them it get the time incorect.

 

[Stoiko Ivanov]

could you try to set the ostype of the vm to a fitting Windows version? (PVE sets a few Qemu parameters regarding whether the clock is in localtime or utc based on that setting)