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Hvordan vises / viser negativ tid korrekt i Excel?

Nogle af os kan lide dette problem, når du trækker et senere tidspunkt 12:20 fra et tidligere tidspunkt 10:15, får du resultatet som ####### fejl som følgende skærmbilleder vist. I dette tilfælde, hvordan kunne du vise negativ tid korrekt og normalt i Excel?

doc-show-negativ-tid1-2doc-show-negativ-tid2

Vis negativ tid ordentligt ved at ændre Excels standarddatasystem

Vis negativ tid ordentligt med formler


pil blå højre bobleVis negativ tid ordentligt ved at ændre Excels standarddatasystem

Her er en nem og hurtig måde for dig at vise den negative tid normalt i Excel ved at ændre Excels standarddatasystem til 1904 datasystem. Gør som dette:

1. For at åbne Excel-indstillinger dialogboks ved at klikke på File (Felt) > Indstillinger i Excel 2010/2013 og klikke Kontorknap > Excel-indstillinger i Excel 2007.

2. Derefter i Excel-indstillinger dialogboksen, klik Avanceret fra venstre rude og i højre sektion skal du kontrollere Brug 1904 datasystem under Ved beregning af denne projektmappe afsnit. Se skærmbillede:

doc-show-negativ-tid1

3. Når du er færdig med indstillingerne, skal du klikke på OK. Og den negative tid vises korrekt på én gang, se skærmbilleder:

doc-show-negativ-tid1-2doc-show-negativ-tid2


pil blå højre bobleVis negativ tid ordentligt med formler

Hvis du ikke vil ændre datasystemet, kan du også bruge følgende formel til at løse denne opgave.

1. Indtast dine datoer, som du vil beregne dem, og indtast denne formel = TEKST (MAX ($ A $ 1: $ A $ 2) -MIN ($ A $ 1: $ A $ 2), "- H :: MM") (A1 og A2 angiver de to tidsceller separat) i en tom celle. Se skærmbillede:

doc-show-negativ-tid1

2. Tryk derefter på Indtast nøgle, og du får det korrekte resultat som vist nedenfor:

doc-show-negativ-tid1

Tip:

Her er en anden formel, der også kan hjælpe dig: = HVIS (A2-A1 <0, "-" & TEKST (ABS (A2-A1), "tt: mm"), A2-A1)

I denne formel, A2 angiver den mindre tid, og A1 står for større tid. Du kan ændre dem efter behov.


Skift alle tal til positive eller negative, som du har brug for i Excel

I Excel er en liste over tal blandet med negative værdier og positive værdier, som skulle konverteres positive eller negative, i dette tilfælde, hvilken metode der er den bedste måde at løse jobbet hurtigt og præcist på? Skift tegn på værdier nytte af Kutools til Excel vil være et godt valg. Klik for gratis prøveversion med alle funktioner om 30 dage!
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Comments (18)
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This comment was minimized by the moderator on the site
The problem I'm having with this negative time solution - is that the spreadsheet with the negative also has a lot of cells with dates in it, so when I Tick 1904 Date System - This adds 4 years to the dates.... is the only remedy for this to go and manually change all those dates?
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I used the formula =IF(A2-A1<0, "-" & TEXT(ABS(A2-A1),"hh:mm"), A2-A1) to calculate the difference between times and it fixed my problem, so thank you! However, now I have another problem, I need to add together the results. So for example, if I have three different times I need to add up (as a result of the formula): -00:00:05, -00:00:10 and 00:00:03. So 2 negative times and 1 positive in this example. How can I have a formula that will calculate (-00:00:05) + (-00:00:10) + (00:00:03) = -00:00:12?
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-0:00:05
-0:00:10
0:00:03
=sum(A1:A3)
This comment was minimized by the moderator on the site
Hi, Ayolice, place the positive time in cell E1, and place the negative time in cell E2 and E3, then use this formula =TEXT(MAX($E$1:$E$3)-MIN($E$1:$E$3),"-H::MM:SS")
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Thank You!
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i have a date from someone elses file showing as "20171229" i need it to look like "12/29/2017".. PLEASE HELP!
This comment was minimized by the moderator on the site
=date(left(A1,4),mid(A1,5,2),right(A1,2)
Where A1 is the cell containing the date.

The new cell will contain an excel date value for that day,
right click the new cell, and select the date format you want.
This comment was minimized by the moderator on the site
I have a negative time value in a cell, say CQ15. [ i got the value using the above mentioned formula =IF(A2-A1<0, "-" & TEXT(ABS(A2-A1),"hh:mm"), A2-A1) ]

Next, I'm trying to multiply the cell value with 5, ie. CQ15*5.
But not getting any result.
I have tried both the following formulas:
=TEXT(CQ15*5, "[h]:m:ss")
&
=IF(CQ15*5<0, "-" & TEXT(ABS(CQ15*5),"[h]:m:ss"),CQ15*5)

In both cases, i received #VALUE!

Can anyone please help me with this.
This comment was minimized by the moderator on the site
Couse CQ15 is a text cell. For calculate with it, you must format it as time value.
=IF(LEFT(CQ15,1)="-", -TIMEVALUE(RIGHT(CQ15,LEN(CQ15)-1)), TIMEVALUE(CQ15))
This comment was minimized by the moderator on the site
thank you so much! You just saved my day!
This comment was minimized by the moderator on the site
I am trying to calculate a negative formula for shift time not fully worked. Say data is as follows: A1 = 07:30 shift start, minus A2 = 1:00 lunch break A3 = 16:30 shift ends Then A4 = 8:00 hours worked during the day. But, should the worker leave earlier, say 17:00, what is the formula in cell A5 that shows how much short the person's shift was?
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[quote]I am trying to calculate a negative formula for shift time not fully worked. Say data is as follows: A1 = 07:30 shift start, minus A2 = 1:00 lunch break A3 = 16:30 shift ends Then A4 = 8:00 hours worked during the day. But, should the worker leave earlier, say 17:00, what is the formula in cell A5 that shows how much short the person's shift was?By Meg[/quote] You can't directly display a negative time in Excel. However, you can display it using the TEXT() function. For example Cell A4 would have =A3-A1-A2 which will display the hours/minutes worked. Cell A5 would have 8:00 which is the number of hours you expect this person to work Cell A6 would have =IF(A5=A4,"Met expected target",IF(A4
This comment was minimized by the moderator on the site
"Tip: Here is another formula also can help you: =IF(A2-A1
This comment was minimized by the moderator on the site
If you switch to 1904 all dates in the workbook change. Not a solution. What is this 1904 thing anyway?
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[quote]If you switch to 1904 all dates in the workbook change. Not a solution. What is this 1904 thing anyway?By Ralf[/quote] The 1904 format comes from Excel version 1.0 which was on the Macintosh. Two years later Microsoft released Excel for Windows and with with that release introduced the "1900" date format. Excel for the Mac continued to default to the 1904 format and Windows defaults to the 1900 format. Both versions can switch to the other format but doing so will cause all dates in a workbook to shift. The year 1900 was special in that though it's divisible by 4 it was not a leap year. The Mac's clock hardware did not have the extra logic needed to handle this special case and so Apple simplified the design by allowing for dates from 1904 (the first leap year in the century) on out. As Excel was first written for the Mac it was natural that Excel would use the Mac's date format. The developers of Excel for Windows used the 1900 format for backwards compatibility with SuperCalc and Lotus 1-2-3 which were the dominate spreadsheet applications in the MS-DOS and Windows markets at the time. The 1904 and 1900 formats are nearly identical. The 1904 format stores dates as the number of days since 1/1/1904 and the 1900 format is the number of days since 1/1/1900. You can convert a 1904 date to a 1900 date by adding 1,462 to a cell's value and subtracting 1,462 to convert the other way. Apparently the developers of Excel for the Mac included code to support negative time values. The coders of Excel for Windows did not support negative time values. Modern versions of Excel still include two separate chunks of code with one dealing with 1904 dates and the other for 1900 dates. They never fixed the 1900 code to support display of negative time values.
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Thanks for the history lesson, Marc. Much clearer now how it came to this. Still leaves me wondering about your last sentence: "They never fixed ..." I don't get it. Would it be so hard to fix? So I still need to use Libre Office for two things: negative times and CSV export. Must be exotic niche features ...
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Hello, any idea of how to do sum of negative hours which are in hh:mm format? for example -01:00 is at A1 column, -02:00 is at A2 column, -03:00 is at A3 column. I used "if" command to sum up the three columns (A1,A2,A3) but showing 0:00 if command "if(A1:A3
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Couldn't you just multiply the numbers by -1 to start, add them up then multiply by -1 again?
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