The recommendation was dropped from the HIG 3 years ago without
communicating to developers that they should update their code.
Do that now.
[0] https://gitlab.gnome.org/Teams/Websites/developer.gnome.org-hig/-/commit/
41d6b4a56f04
Related: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2618
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/3732>
const prefix = offsetCurrentTz >= 0 ? '+' : '-';
const text = offsetMinutes === 0
? `${prefix}${offsetHours}`
- : `${prefix}${offsetHours}\u2236${offsetMinutes}`;
+ : `${prefix}${offsetHours}:${offsetMinutes}`;
return text;
}