Depends on what your definition of 'clean' is? Ha!
I spend probably an hour tops every day, M-F and that's about it!
Together as a family we do a '10 Minute Tidy' before the kids go to bed every night and this helps A LOT...they pick up their toys and I do a general tidying up. Other than that as far as everyday work( M-F) is concerned what I usually do is: ~Unload dishwasher in the morning while the kids eat breakfast so it is ready for loading during the day/night, then try to throw in at least 1 load of laundry relatively early, vacuum the living room and hall after kids go to school, rotate laundry when kids get home, then it's just the dishes and wipe off counters and fold the laundry before bed (that's usually my part of the 10 minute tidy) ....but that's about it for mandatory stuff M-F. It helps me to give myself those easily accomplished set of tasks that I know that I can do, so I do not feel overwhelmed and I don't feel like all I do as clean!
When the weekends roll around we usually all get up as a family and set aside 1 hour where we ALL get up and clean, hubby does the bathrooms each child does their own room, then together the kids do the family room and I usually do the living room, the mopping (my arch nemasis) and all the small detail type stuff, like vacuuming the stairs and reorganizing book shelves, de-cluttering the back counter (our 'drop zone') and that's when I do all our bedding . When everyone is working at the same time I think it makes all the kids feel like it is 'fair' and that they do not have a ton of 'chores' to do, ya know? Growing up I lived in a spotless house and felt like a maid and it sucked, so I tried to do something different w/my own family!!
I have 3 kids of my own, 2 stepsons and 2 nephews(who are here all the time), 2 cats + 1 BIG dog... so my house is what I would call 'lived in'...I try to make sure that nothing is gross and that the living room is always pretty respectable (has to be vacuumed for me not to go crazy) but I will be honest I hardly ever dust, mopping is designated to weekends only and I haven't cleaned my walls like ever (I am aware they need it though, ugh)...my kids' rooms are usually not the cleanest but I am OK with that, I am happy as long as their beds are made and you can see some of the floor ;)
My kids are 20, 17, 16, 12, 8, 6 & 4 and when I first became a Mom/Auntie and they were all younger (well the oldest 4...my 2 stepsons+2 nephews) I turned into my Mother and was a clean freak...always grouchy when the kids would make a mess, I was the woman who was right on top of them picking up everything as soon as they set it down 'Are you done with this'? and everything had a 'place'....but I was miserable and so was everyone around me...I learned how to relax and it is way better this way!!
*The only time I ever feel like going back to my old ways is when my in-laws or my Mother comes for a visit and I have to do the mad scramble to 'REALLY' clean...that is stressful and it is then that I wish I has my old 'always clean' house....but alas, it is not to be anymore!