Calculating 'Negative' Time

[Chris Dyke]

Hi there,


I have a sheet that shows the number of hours above or below a standard working day a person has worked. I need to then sum these. The formula I have (column R) is fine if the outcome is positive (row 3) but not when negative (row 4). Any ideas please?


https://drive.google.com/open?id=1BHEQxUGrO2R3nvxr_4m1LBOL7k2sPIhj


Thanks in advance,
Chris

 

[Marcílio_Lobão]

Chris Dyke, Good morning.

Your need is much simpler than it seems.
You don't need the tiresome and huge formulas you are using.

I checked your spreadsheet and found out why you are using this formula.
As you can see in your spreadsheet that I am returning, the two cells that have "value" are actually TEXT.
So the whole difficulty of adding up.

All cells to be added have to be TIME format.

The formula in cell R3 can be =SUM(B3:Q3)
That simple.

First step to using negative hours on your worksheet is to change the system dates to 1904 system.
From that point on your worksheet you will work with negative hours normally.

If the negative time is the result of a formula, everything will happen automatically.

But if you want to enter negative hours the method I use is as follows:

I type -> -"03:00" and the summation happens normally.

Please take a look at my sample to you.
https://www.sendspace.com/file/agb9l5

I hope it helps solve your problem.

 

[Chris Dyke]

This is really great, thanks, very informative and clear, very much appreciated.

Chris Dyke, Good morning.

Your need is much simpler than it seems.
You don't need the tiresome and huge formulas you are using.

I checked your spreadsheet and found out why you are using this formula.
As you can see in your spreadsheet that I am returning, the two cells that have "value" are actually TEXT.
So the whole difficulty of adding up.

All cells to be added have to be TIME format.

The formula in cell R3 can be =SUM(B3:Q3)
That simple.

First step to using negative hours on your worksheet is to change the system dates to 1904 system.
From that point on your worksheet you will work with negative hours normally.

If the negative time is the result of a formula, everything will happen automatically.

But if you want to enter negative hours the method I use is as follows:

I type -> -"03:00" and the summation happens normally.

Please take a look at my sample to you.
https://www.sendspace.com/file/agb9l5

I hope it helps solve your problem.

 

[yky]

See no formulae.

 

[Marcílio_Lobão]

yky, Good morning.

May we help you?