I Want To Make The Static Text show Text From List box with time

Haii... i want to make program with three list button and two listbox. when we press the first button it will show some kind of time (i' using pause because i don't know how to use timer). And then everytime we press the second and the third button it will take the time from the first button. and keep it in the listbox. there's two listbox for second and third button. so everytime the second and the third button pressed it will save the time in their listbox. and in list box it will sorted so smaller number will be in the top. and lastly there will be static text. i want to make the static text will show the text from the top both list box and then after it show the text for some time it will erase from the list box. and show the top from list box again. and if there's no list in list box it will not show anything. do you have any idea how to do it??

here's the figure that i try to make and the code that i try in attach file