I'm brazilian and I'm editing report_saleorder_document

In portuguese dates are written like this:

21 de setembro de 2020

but I don't know how to write the word de on my report

My code:

<t t-set="o" t-value="doc.with_context({'lang':doc.partner_id.lang})"/>
  <span t-field="o.date_order" t-options="{'widget': 'date', 'format': 'dd de MMMM de YYYY'}" />
</t>

gives me

19 197 setembro 197 2020

Odoo sees the word de as d for day and e for whatever

My questions:

1- How can I fix that? Does odoo date have an escape/wildcard for this situation?

2- I also need to adjust my odoo's clock since my odoo thinks that today (september 21, 9am, GTM -3) is actually september 19, 8pm, GTM -3. Is this normal? How can I fix it?

s

s

d