When using LC_TIME=et_EE.UTF-8 the calendar has Sunday as the first day of the week. This is absolutely wrong, as Monday has always been the first day of the week since recorded history and use of such 7 day calendars in estonian calendars. It seems the locale does not set first_weekday nor first_workday (also checked in cvsweb - http://sourceware.org/cgi-bin/cvsweb.cgi/libc/localedata/locales/et_EE?rev=1.16&content-type=text/x-cvsweb-markup&cvsroot=glibc) and it probably should to get this corrected - something like was done in http://sourceware.org/cgi-bin/cvsweb.cgi/libc/localedata/locales/ru_RU.diff?r1=1.29&r2=1.30&cvsroot=glibc or maybe by reordering the weekday names in abday, day and touching up week-1stday The weekday starts with Monday (Esmaspäev) in Estonia and workdays are from Monday to Friday (Reede). I hope this can be fixed trivially.
Get the original author of the locale to agree and provide a patch.
I checked in a patch yesterday.