I am trying to convert beginIntervalDate into ddd D MMM YYYY format in Swedish locale, however it displays Thu Jan 05 2017 instead of tor jan 05 2017. I cannot figure what am I doing wrong here.

Here is the code snippets:

const beginIntervalDate = moment(beginDate, dateFormatsI18n.beginDateFormat);

dateFormatsI18n is coming from here:

beginDateFormat: {
    id: 'scheduling-appointment-type-card-list.AppointmentContainer.beginDateFormat',
    description: 'Format for the begin date',
    defaultMessage: 'ddd, MMM D, YYYY',
})

const dateFormatsI18n = {
    beginDateFormat: intl.formatMessage(i18n.beginDateFormat),
}

Respective translation file :

scheduling-appointment-type-card-list.AppointmentContainer.beginDateFormat": "ddd D MMM YYYY"