I want to check if the value is given in the cell, start time and end time.
It works fine now with the function like this:
=if(and(C9 > 0, B9 > 0),C9-B9, 0)
But instead of
0 I and to check the condition
not equal FALSE.
=if(and(C9 != FALSE, B9 != FALSE),C9-B9, 0)
!= operator is not supported in google spread sheet.
How can I check if the value is not given in the cell?