saas-one/frontend/saas-web/ext/packages/modern-locale/overrides/pt_BR/picker/Date.js

/**
 * Portuguese/Brazil Translation by Wemerson Januario <wemerson.januario@gmail.com>
 * 10 October 2017
 */
Ext.define('Ext.locale.pt_BR.picker.Date', {
    override: 'Ext.picker.Date',

    config: {
        doneButton: 'Concluído',
        monthText: 'Mês',
        dayText: 'Dia',
        yearText: 'Ano'
    }
});