I encountered a wierd behaviour while working with Excel 10: Column B has "time in" in HH:MM format Column C has "time out" in HH:MM format I want column D to have the time difference displayed as decimal amount of hours (so if B4 has 10:00 and C4 has 13:30, D4 will have 3.5). I tried using
=HOUR(C4-B4)+MINUTE(C4-B4)/60
but that gives me 00:00 I then tried:
=HOUR(C4-B4)
which returns 3 for the above example, but when I tried adding minutes it went back to 00:00. I now tried to remove the minutes part and returned to
=HOUR(C4-B4)
just as before, but now it returns 00:00 (for the exact same formula that returned 3 earlier). it only worked again when I used "undo" until I was back at the first try. anything else I tried adding to that formula, even as simple as
=HOUR(C4-B4)+3
returned 00:00. what am I doing wrong?