Daniel Pimentel <d.4.n.1@riseup.net> writes:

> I have GuixSD with GNOME in my desktop, but in GNOME clock on bartop
> not appear a character ":" (attach a screenshot). Epiphany,
> gnome-terminal, Icecat, Emacs and other application are allright.
>
> Do you have a same problem or not?

I do not have the same problem.  Maybe it's a font issue.  Do you have
the right fonts installed?  I have the following fonts installed; maybe
you can try installing some of them to see if it fixes your problem:

font-gnu-freefont-ttf
gs-fonts
font-dejavu
font-terminus
font-adobe-source-han-sans
font-liberation
font-inconsolata

The only other things I can think to ask is: does this problem occur
even on a clean installation of GuixSD?  Also, what is your locale set
to?  It seems possible that depending on the locale, the fonts you
require might be different.

-- 
Chris