I would like to have a small timer in the background of my Excel application. Whenever the user changes a value in any cell in Sheet1, in the same cell in Sheet2 should be written how much seconds it took the user between two changes - that is, e.g., the user writes a value in B4 and then, 12 seconds later, another value in C15. Then, in Sheet2, in cell C15 would stand simply "12". It doesn't really matter, if the programme writes seconds or the standart time format.
I'm looking for a complete solution, that's why I am giving away the maximum points!