On the Solaris 10 the current values are:
$> locale
LANG=
LC_CTYPE="C"
LC_NUMERIC="C"
LC_TIME="C"
LC_COLLATE="C"
LC_MONETARY="C"
LC_MESSAGES="C"
LC_ALL=
root@mp-wst01 # locale
LANG=
LC_CTYPE=de_AT.UTF-8
LC_NUMERIC=de_AT.UTF-8
LC_TIME="C"
LC_COLLATE=de_AT.UTF-8
LC_MONETARY=de_AT.UTF-8
LC_MESSAGES=de.UTF-8
LC_ALL=
root@mp-wst01 #
root@mp-wst01 # cat /etc/default/init
#
# Copyright 1992, 1999-2002 Sun Microsystems, Inc. All rights reserved.
# Use is subject to license terms.
# #ident "@(#)init.dfl 1.7 02/12/03 SMI"
#
# This file is /etc/default/init. /etc/TIMEZONE is a symlink to this file.
# This file looks like a shell script, but it is not. To maintain
# compatibility with old versions of /etc/TIMEZONE, some shell constructs
# (i.e., export commands) are allowed in this file, but are ignored.
#
# Lines of this file should be of the form VAR=value, where VAR is one of
# TZ, LANG, CMASK, or any of the LC_* environment variables. value may
# be enclosed in double quotes (") or single quotes (').
#
TZ=Europe/Vienna
CMASK=022
LC_COLLATE=de_AT.UTF-8
LC_CTYPE=de_AT.UTF-8
LC_MESSAGES=de.UTF-8
LC_MONETARY=de_AT.UTF-8
LC_NUMERIC=de_AT.UTF-8
LC_TIME=de_AT.UTF-8
root@mp-wst01 #
you can find your installed locales in /usr/lib/locale, or try the command "locale -a". for the current session you can set it with "export LC_ALL=<locale>"