**Question description:**

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In my spread sheet, F5 shows 7:13. F6 is blank. F7 has the formula =IF(ISBLANK(F6),"",F5-F6). When I put 7:15 in F6, it shows 0:02 in F7. If I put 7:10 in F7 it shows ######. I need F7 to show negative or positive times

Solved by F. H. in 40 mins

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Excelchat Expert
12/11/2017 - 05:22

Hi

User
12/11/2017 - 05:22

Hello

Excelchat Expert
12/11/2017 - 05:22

can you upload your file

Excelchat Expert
12/11/2017 - 05:22

?

User
12/11/2017 - 05:22

no

Excelchat Expert
12/11/2017 - 05:22

ok

Excelchat Expert
12/11/2017 - 05:24

use somethign like this

Excelchat Expert
12/11/2017 - 05:24

=IF(B2-A2<0, "-" & TEXT(ABS(B2-A2),"hh:mm"), B2-A2)

User
12/11/2017 - 05:25

I also want to leave F7 blank until i add info in F6

Excelchat Expert
12/11/2017 - 05:26

in place of F5-F6

Excelchat Expert
12/11/2017 - 05:26

use above formula

Excelchat Expert
12/11/2017 - 05:28

did it worked?

User
12/11/2017 - 05:29

no

Excelchat Expert
12/11/2017 - 05:30

instead if this

Excelchat Expert
12/11/2017 - 05:30

=IF(ISBLANK(F6),"",F5-F6)

Excelchat Expert
12/11/2017 - 05:30

use this

Excelchat Expert
12/11/2017 - 05:31

=IF(ISBLANK(F6),"",=IF(F5-F6<0, "-" & TEXT(ABS(F5-F6),"hh:mm"), F5-F6))

Excelchat Expert
12/11/2017 - 05:32

=IF(ISBLANK(F6),"",IF(F5-F6<0, "-" & TEXT(ABS(F5-F6),"hh:mm"), F5-F6))

User
12/11/2017 - 05:34

does not work. left F7 blank.

Excelchat Expert
12/11/2017 - 05:35

can you share a sample file

User
12/11/2017 - 05:35

how do i do that

Excelchat Expert
12/11/2017 - 05:36

careta any dummy file

Excelchat Expert
12/11/2017 - 05:36

and put the data in there

Excelchat Expert
12/11/2017 - 05:36

in F6 aand F5

User
12/11/2017 - 05:38

don't know how to do that. there must be something i'm leaving out of my existing formula that can make it do a negative time

Excelchat Expert
12/11/2017 - 05:39

you can'thave a negative time

Excelchat Expert
12/11/2017 - 05:39

you have to use Abs

User
12/11/2017 - 05:40

yes you can. when i put a time in F6 that is less than the time i F5 it should be negative in

Excelchat Expert
12/11/2017 - 05:40

but in formula you can't

Excelchat Expert
12/11/2017 - 05:41

the above formula gives you a negative time

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