Jdt 8:4-6

4Judith remained as a widow for three years and four months5at home where she set up a tent for herself on the roof of her house. She put sackcloth around her waist and dressed in widow's clothing.6She fasted all the days of her widowhood, except the day before the sabbath and the sabbath itself, the day before the new moon and the day of the new moon, and the festivals and days of rejoicing of the house of Israel.