Calculating time

[rookzie]

Hello,

I have been racking my head on how to solve my time issue on my train sheet.

I have a train time sheet to show if a train is on time or late Ex;

if a train is set and ready to go at 01:30 and the crew is ordered at 03:30 i can show it to say 2:00 on time between these two times. but lets say the train wasn't ready to leave until 04:12 but the crew was ordered at 03:00 i need it to show -1:12 train was late. what i get is #######

i hope i'm explaining this right.

 

[DanteAmor]

This could be a way, but with negative values ​​you will not be able to perform operations.
I hope it helps you.


<table border="1" cellspacing="0" style="font-family:Calibri,Arial; font-size:11pt; background-color:#ffffff; "> <colgroup><col style="font-weight:bold; width:30px; " /><col style="width:76.04px;" /><col style="width:76.04px;" /><col style="width:76.04px;" /></colgroup><tr style="background-color:#cacaca; text-align:center; font-weight:bold; font-size:8pt; "><td > </td><td >A</td><td >B</td><td >C</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >1</td><td > </td><td > </td><td > </td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >2</td><td style="text-align:right; ">04:12</td><td style="text-align:right; ">03:00</td><td >-1:12</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >3</td><td style="text-align:right; ">01:30</td><td style="text-align:right; ">03:30</td><td style="text-align:right; ">02:00</td></tr></table><br /><table style="font-family:Arial; font-size:10pt; border-style: groove ;border-color:#00ff00;background-color:#fffcf9; color:#000000; "><tr><td ><b>Formeln der Tabelle</b></td></tr><tr><td ><table border = "1" cellspacing="0" cellpadding="2" style="font-family:Arial; font-size:9pt;"><tr style="background-color:#cacaca; font-size:10pt;"><td >Cell</td><td >Formula</td></tr><tr><td >C2</td><td >=IF(A2<B2,B2-A2,"-" & TEXT(A2-B2,"h:mm"))</td></tr></table></td></tr></table>

 

[DanteAmor]

To use negative time, you must switch to the 1904 time system.

You can use the subtraction and the negative type can also be used to perform operations.

<table border="1" cellspacing="0" style="font-family:Calibri,Arial; font-size:11pt; background-color:#ffffff; "> <colgroup><col style="font-weight:bold; width:30px; " /><col style="width:76.04px;" /><col style="width:76.04px;" /><col style="width:76.04px;" /></colgroup><tr style="background-color:#cacaca; text-align:center; font-weight:bold; font-size:8pt; "><td > </td><td >A</td><td >B</td><td >C</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >1</td><td > </td><td > </td><td > </td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >2</td><td style="text-align:right; ">04:12</td><td style="text-align:right; ">03:00</td><td style="text-align:right; ">-01:12</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >3</td><td style="text-align:right; ">01:30</td><td style="text-align:right; ">03:30</td><td style="text-align:right; ">02:00</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >4</td><td > </td><td > </td><td style="text-align:right; ">00:48</td></tr></table><br /><table style="font-family:Arial; font-size:10pt; border-style: groove ;border-color:#00ff00;background-color:#fffcf9; color:#000000; "><tr><td ><b></b></td></tr><tr><td ><table border = "1" cellspacing="0" cellpadding="2" style="font-family:Arial; font-size:9pt;"><tr style="background-color:#cacaca; font-size:10pt;"><td >Cell</td><td >Formula</td></tr><tr><td >C2</td><td >=B2-A2</td></tr><tr><td >C3</td><td >=B3-A3</td></tr><tr><td >C4</td><td >=SUM(C2:C3)</td></tr></table></td></tr></table>

 

[joeu2004]

And just embellishing DanteAmor's response, don't forget that you can use the TEXT format "hh:mm" and right horizontal cell format so that the "negative time" lines up with normally-calculated positive times.

Also note that you will not be able to reference the "negative time" text directly in other arithmetic; for example, part of the sum of total time that the crew has been assigned.

 

[joeu2004]

Also note that you will not be able to reference the "negative time" text directly in other arithmetic; for example, part of the sum of total time that the crew has been assigned.

I meant: directly reference. We can always provide a formula. Consider using two cells: the visible one with DanteAmor's formula, and another cell (hidden?) with your original calculation formatted as General. Refer to the latter in any time arithmetic.

And a head's up: someone might suggest setting the 1904 Date System option. I advise against it. It changes the "serial number" that represents any date. That can cause problems when copying between workbooks.

(Oh, I didn't notice that DanteAmor did already. My comment was not meant as a direct criticism. But I do believe it is not a good idea.)