Presently, the voting interval is fixed to once per week. However, we consider offering different interval options in the future.
Why are you asking on mondays for the mood of the last week?
As for the most office environments the working week ends on fridays, we want employees of all branches to be able to review their week. Many branches like transport/logistic, healthcare, production facilities, gastronomy and retail stores, have saturdays and sundays included in their working week. Additionally many companies have employees in both areas, which requires the working week to include all days of the week.
To make sure every employee can review the passed week, we need to ask on monday.