We haven't got a cleaner anymore (sob) but when we did, she did 4 hours once a week and in that time she did:
Bathroom - cleaned the whole room, including floors, woodwork, windows
Kitchen (it was a big room) cleaned all surfaces, outsides of cupboards, floors, oven. Emptied & loaded dishwasher. Once a month she did inside cupboards & fridge, and windows.
Living room - cleaned, dusted, tidied up a fair bit (!!), swept & mopped floors. Windows once a month.
3 bedrooms - hoovered, dusted, wiped down surfaces, made beds.
Halls - hoovered and dusted. Every now and then she would wipe down the woodworks and try and get marks out of walls with sugar soap.
She was great. Used her own initiative. Did more tidying up than she should have done, really. Would do laundry and ironing for extra charge.We'll never find another cleaner as good as her :-(