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Sut i arddangos / dangos amser negyddol yn iawn yn Excel?

Efallai y bydd rhai ohonom yn dioddef y broblem hon, pan fyddwch yn tynnu amser diweddarach 12:20 o amser cynharach 10:15, byddwch yn cael y canlyniad fel gwall ###### fel y dangosir sgrinluniau canlynol. Yn yr achos hwn, sut allech chi ddangos amser negyddol yn iawn ac fel arfer yn Excel?

doc-sioe-negyddol-amser1-2doc-sioe-negyddol-amser2

Arddangos amser negyddol yn iawn gyda newid System Dyddiad Rhagosodedig Excel

Arddangos amser negyddol yn iawn gyda Fformiwlâu

swigen dde glas saethArddangos amser negyddol yn iawn gyda newid System Dyddiad Rhagosodedig Excel

Dyma ffordd hawdd a chyflym ichi arddangos yr amser negyddol fel arfer yn Excel trwy newid System Dyddiad Rhagosodedig Excel i system dyddiad 1904. Gwnewch fel hyn:

1. I agor y Dewisiadau Excel blwch deialog trwy glicio Ffeil > Dewisiadau yn Excel 2010/2013, a chlicio Botwm Swyddfa > Dewisiadau Excel yn Excel 2007.

2. Yna yn y Dewisiadau Excel blwch deialog, cliciwch Uwch o'r cwarel chwith, ac yn yr adran dde, gwiriwch Defnyddiwch system dyddiad 1904 dan Wrth gyfrifo'r llyfr gwaith hwn adran. Gweler y screenshot:

doc-sioe-negyddol-amser1

3. Ar ôl gorffen y gosodiadau, cliciwch OK. A bydd yr amser negyddol yn cael ei arddangos yn gywir ar unwaith, gweler sgrinluniau:

doc-sioe-negyddol-amser1-2doc-sioe-negyddol-amser2

swigen dde glas saethArddangos amser negyddol yn iawn gyda Fformiwlâu

Os nad ydych am newid y system ddyddiadau, gallwch hefyd ddefnyddio'r fformiwla ganlynol i ddatrys y dasg hon.

1. Mewnbwn eich dyddiadau yr ydych am eu cyfrif, a nodi'r fformiwla hon = TESTUN (MAX ($ A $ 1: $ A $ 2) -MIN ($ A $ 1: $ A $ 2), "- H :: MM") (Mae A1 ac A2 yn nodi'r ddwy gell amser ar wahân) i mewn i gell wag. Gweler y screenshot:

doc-sioe-negyddol-amser1

2. Yna pwyswch Rhowch allwedd, a byddwch yn cael y canlyniad cywir fel a ddangosir isod:

doc-sioe-negyddol-amser1

Tip:

Dyma fformiwla arall a all eich helpu hefyd: = OS (A2-A1 <0, "-" & TESTUN (ABS (A2-A1), "hh: mm"), A2-A1)

Yn y fformiwla hon, A2 yn nodi'r amser llai, a A1 yn sefyll am yr amser mwy. Gallwch eu newid yn ôl yr angen.

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Comments (18)
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Martin
Martin
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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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Ayolice
Ayolice
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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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Kunal Shah
Kunal Shah     Ayolice
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-0:00:05
-0:00:10
0:00:03
=sum(A1:A3)
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Sunny
Sunny     Ayolice
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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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JeteMc
JeteMc
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Thank You!
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shalene
shalene
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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!
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John M
John M     shalene
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=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.
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JS
JS
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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.
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KulGery
KulGery     JS
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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))
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bo ek
bo ek
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thank you so much! You just saved my day!
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Meg
Meg
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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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Marc Kupper
Marc Kupper     Meg
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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
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MND
MND
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"Tip: Here is another formula also can help you: =IF(A2-A1
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Ralf
Ralf
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If you switch to 1904 all dates in the workbook change. Not a solution. What is this 1904 thing anyway?
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Marc Kupper
Marc Kupper     Ralf
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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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Ralf
Ralf     Marc Kupper
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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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sk
sk
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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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ExelWizard
ExelWizard     sk
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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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