I have 4 columns on my sheet.
A B C D
10/10/2016 10:21:00 PM 10/11/2016 11:31:00 AM
How do I calculate this time difference? The simple formula =D-B
is giving me a negative value.
google sheets
I have 4 columns on my sheet.
A B C D
10/10/2016 10:21:00 PM 10/11/2016 11:31:00 AM
How do I calculate this time difference? The simple formula =D-B
is giving me a negative value.
Best Answer
In all spreadsheet programs time is stored internally as a fraction of a day. Dates are stored as floating point number counting up from a specific day.
In your case you have split the dates and times into different cells. This means that when you subtract Column D from column B the program doesn't know about the date so it dutifully says that 11:31 AM comes before 10:21 PM and gives you a negative result. Because you are formatting the result as a number you see it as negative.
To get the value you expect you want to use the following formula to recombine the date and the time before doing the subtraction:
If you format this as a number is will show you:
To get in hours multiply it by 24 to get 13.16666667