I think it takes 3-3.5 hrs, depends on your flat size. and do you need her to clean your bathroom?
1. Make soup, cook dishes (2 meals) around 1.5 hr.
2. Wash dishes and clean up the kitchen and stove 等等... 0.5 hr
3. 吸塵, 拖地 + window 0.5 hr
4. Iron clothes 0.5 hr