How to keep dom0 from leaking timezone

User Support
1

dom0 seems to be leaking my timezone is there a way I can have the clock panel be my local time zone but dom0 be elsewhere?

2

How does it seem to be leaking your timezone?

3

when I check my timezone in a browser with an IP in a different timezone the browser can see the same timezone as the output of timedatectl in dom0

1 Like
4

any ideas?

5

If i remember correctly dom0 sync the time from sys-net and then dom0 give the time to the others vm when they boot with a qubes service someone will correct me if i’m wrong. But as far i understand you have only one option

  1. You setup a bash script in /rw/config/rc.local to automatically randomize the timezone after boot

So your bash script will need to set a different time and date but it must be accurate to the current real time

6

The simplest way would be to set your clockvm to what I presume is your sys-vpn. However this will affect all your VMs.

7

I believe this would be overwritten the next time sync.

8

Take a look at the anon-timezone feature (Qubes 4.3 only):

https://dev.qubes-os.org/projects/core-admin-client/en/latest/manpages/qvm-features.html#anon-timezone

4 Likes
9

You can right click on the clock panel and set its display timezone under Properties. Then change the dom0 timezone to whatever you want to be passed on to VMs (that don’t have the anon-timezone feature set), e.g. change it to UTC.

4 Likes
10

qvm-features YOURVM anon-timezone 1

1 Like