How set locale Time to spanish in Sqwebmail

Hi friends

I am customize my sqwebmail to spanish language.
I also have installed the calendar option of sqwebmail.
But the problem is that the time is in another format.

I searched in google and I found that my problem is in my locale enviroment 
I could set my locale variables using localedef, but I prefer change the locale using setlocale of language C function.

I also see in the directory /usr/local/share/sqwebmail/html/en-us
the file LOCALE, and LANGUAGE, LANGUAGE_PREF it is set for default in en_US, I changed 

I am confuse of  what method use for setup my locale.
How should I change my locale for that sqwebmail calendar will be setup for spanish?

Thanks



Juan Enciso Condeña
Área de Operaciones
Red Privada Virtual S.A.
Av. Paseo de la República 4675 - Lima 34 
Telf: (511) 241-4122 Anexo 2244 
Fax: (511) 446-8135 

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