Specifies the language to be used for translation of month
    names and abbreviations in date and time input and display. The
    language-name argument also determines the translation of other
    language-dependent text, such as the translation for the date
    literals YESTERDAY, TODAY, and TOMORROW.

    If you do not specify a language, the default is the language
    specified by the logical name SYS$LANGUAGE. If you require
    different language spellings, you must define the logical name
    SYS$LANGUAGES in addition to SYS$LANGUAGE. You must run the
    command procedure SYS$MANAGER:LIB$DT_STARTUP.COM after defining
    SYS$LANGUAGES. For example:

    $ DEFINE SYS$LANGUAGES FRENCH, GERMAN, SPANISH
    $ RUN SYS$MANAGER:LIB$DT_STARTUP.COM
    $ SHOW LOGICAL SYS$LANGUAGES
       "SYS$LANGUAGES" = "FRENCH" (LNM$SYSTEM_TABLE)
    $ SHOW LOGICAL SYS$LANGUAGE
      "SYS$LANGUAGE" = "ENGLISH" (LNM$SYSTEM_TABLE)

    If you do not define SYS$LANGUAGES, all translation routines
    default to English. See the OpenVMS run-time library
    documentation for more information on LIB$DT_STARTUP.COM.

    The SET LANGUAGE statement does not affect the collating
    sequences used for sorting and comparing data. The CREATE
    COLLATING SEQUENCE statement specifies alternate collating
    sequences.