A typical day for an artist is going to vary from person to person.
Depending on the art, many artists have to work to support their art or craft. At least when they first start out. If you're fortunate enough to actually make a living from your paintings then good for you!!
Recently, I've read about several freelancers and artist and their daily routines. They get up relatively early, between 6 and 8 AM to start their day. They typically get some workout time in return home and get a shower. Once they're refreshed and dressed from the workout, they get to work. Some eat early and some don't. Regardless if they eat before they workout or not, they typically eat before they get to work. Once they've started working they take breaks as often as they like and also break for lunch. Most are done working by 3 PM. From there it's household chores, dinner, tv, etc. Some go out several evenings a week and enjoy time with friends.
This is an example of the four or five I've read about in the last month or so.
Hope this helps!