Strange CLI Date Output

Hello RT friends,
I got this problem and cant resolve, i cant even locate when started.

My CLI started to output errors about ParseDate, but just some tickets, see below:

Tickets 770,1070 and 3070 are OK, displaying relative date (7mth, 3mth)
Ticket 2070 with error, displaying parsedate error.

root@rt:~# rt ls 770
Query:id=770
Ticket Owner Queue Age Told Status Requestor Subject
770 jose. hsr 7 mth 7 mth resolv leandro.v Ativação de Job

root@rt:~# rt ls 2070
Query:id=2070
Ticket Owner Queue Age Told Status Requestor Subject
Unknown date format in parsedate: Sex Maio 11 15:54:49 2012
Unknown date format in parsedate: Ter Maio 15 17:55:18 2012
2070 hugo. h9j ??? ??? resolv luciano.c Exclusão de host SIGMon

root@rt:~# rt ls 1070
Query:id=1070
Ticket Owner Queue Age Told Status Requestor Subject
1070 diaul saude 7 mth 7 mth resolv mirley.ti Verificacao de download e link

root@rt:~# rt ls 3070
Query:id=3070
Ticket Owner Queue Age Told Status Requestor Subject
3070 nelso cardi 3 mth 3 mth resolv sistemas@ Dump

Below -l to list details:
root@rt:~# rt ls -l 770
id: ticket/770
Queue: hsr
Owner: jose.barduchi@intersolution.inf.br
Creator: XXXXX
Status: resolved
Priority: 0
InitialPriority: 0
FinalPriority: 0
Requestors: XXXX
AdminCc: XXX
Created: Ter Mar 06 14:04:03 2012
Starts: Não definido
Started: Ter Mar 06 14:51:24 2012
Due: Não definido
Resolved: Ter Mar 06 15:13:21 2012
Told: Ter Mar 06 15:13:19 2012
LastUpdated: Ter Mar 06 15:16:06 2012
TimeEstimated: 0
TimeWorked: 0
TimeLeft: 0
CF.{Agendado}:
CF.{Horas_Normais}: 0
CF.{Minutos_Normais}: 30
CF.{Horas_Extras}: 0
CF.{Minutos_Extras}: 0
CF.{Reaberto}:
CF.{Chamado_Interno}:
CF.{Cobranca}:
CF.{Visita}:
CF.{area}:

Hello RT friends,
I got this problem and cant resolve, i cant even locate when started.

My CLI started to output errors about ParseDate, but just some tickets, see below:

Tickets 770,1070 and 3070 are OK, displaying relative date (7mth, 3mth)
Ticket 2070 with error, displaying parsedate error.

I’d be curious to know if you have LC_DATE set to something and what
you’ve chosen as your DateTimeFormat in RT_SiteConfig.pm or in your
user preferences.

-kevin