>>1826685810 minutes of basic callisthenics will not yield great results after the body gets used to about, what, 6 sets max? More difficult exercises like the one arm chinup or planche will be out of your league.
If you absolutely want to spend only that little amount ot time, use a split like this one
>Monday:squatting and lunging>T:Pushups>W:Chinning>T:single leg work>F:handstand (pushups)>S:difficult Pullups & front lever>Sunday=repeat or rest