Article 1698
ART. 1698. If the duration of the household service is not determined either by stipulation or by the nature of the service, the head of the family or the house helper may give notice to put an end to the service relation, according to the following rules: (1) If the compensation is paid by the day, notice may be given on any day that the service shall end at the close of the following day; (2) If the compensation is paid by the week, notice may be given, at the latest, on the first business day of the week, that the service shall be terminated at the end of the seventh day from the beginning of the week; (3) If the compensation is paid by the month, notice may be given, at the latest, on the fifth day of the month, that the service shall cease at the end of the month.