But off once a week (usually Sunday) is labour law. The maids have the rights to take one day off per week. They are just nice to take the 2 days off per month arrangements with the employers. I do not have the guts to make this arrangement with my maid as I know that she will be unhappy. Unless I am on maternity leave or sick, I will then request her to give up her Sunday holiday, and I'll pay her overtime.