当过滤器处于活动状态时，如何计算 Excel 中的时差？

Question

So i have these data for example:

as you can see the filter is on "Fahrzeugname". Now i want to calculate the Time Difference of each line. If I use

=A4-A2

the first line does calculate the right time and if i append that on the next lines it uses:

=A6-A4

which should be A7

Could you help me there?

Answer 1

Use the following formula in F2 under "Zeitdifferenz":

=LOOKUP(1,1/(D3:D$100=D2),A3:A$100)-A2

You should change the 100 rows reference into whichever you need it to be. I made this answer under the assumption you always filter for just a single "Fahrzeugname". Otherwise, you could create an helper column where you check if a cell is visible in the first place, for example using =SUBTOTAL(3,A2) . Then you can use the same formula as above but instead of referencing the D-column, you should reference the helper column and check against the value of 1.