My son will be in 5th grade next year. Here is what we are planning for him with the approximate time I think it will take him.
Math(1 hour /day)
Grammar (20 min/day)
Vocabulary (15 min/day)
Spelling (10 min/day)
Writing (30 min /day I think - we are using a new program)
Typing (15 min/day)
Spanish (30 min/every other day)
History/Literature/Geography/Art (combined 1 hour/day)
Science (experiments at co-op with a homework assignment during the week, done on a day we don't do spanish)
Music (2 hours/ week through a theater program)
Hope this is somewhat helpful. It does look like a lot when it is all written down, but the time that it actualy takes after you get in a groove is not so bad. I also take advantage of the fact that he can do some of this totally on his own and only ask when he needs help. I correct his work so I can be sure he is grasping what he is learning but he enjoys the fact that he can accomplish learning by himself and without me hovering over him.