* doc/emacs/calendar.texi (Sunrise/Sunset): Refer to the
variable `calendar-time-zone-style' explicitly. (Bug#70498)
@vindex calendar-time-zone-style
If you want to display numerical time zones (like @samp{"+0100"})
-instead of symbolic ones (like @samp{"CET"}), set this to @code{numeric}.
+instead of symbolic ones (like @samp{"CET"}), set
+@code{calendar-time-zone-style} to @code{numeric}.
As a user, you might find it convenient to set the calendar location
variables for your usual physical location in your @file{.emacs} file.