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#1
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![]() "Andy Blackburn" wrote in message ... Go to the menu item Format Cells Select the Custom Category (at the bottom of the menu on the left) Type the following into the 'Type' box in the upper right of the dialog: [h]:mm;@ This will give you the standard flight log format - hhh:mm (no seconds) This works in Excel 2003 - but I don't think the formats have changed much if at all since Excel '97 9B At 19:00 13 December 2004, Marc Ramsey wrote: Wayne Paul wrote: Using the format Category of 'Time' and the Type '37:20:55' I entered 12:22, 14:38, 72:14 and the above mentioned 45:36. Summing this column gave an accurate total of 144:50:00. What version of Excel are you using? I tried this in Excel 97 (I'm too cheap to upgrade). The key seems to be using the '37:30:55' time format in the Format Cells dialog. If any other time format is used, the values are interpreted as time of day, and wrap around at 24 hours. Marc That one works a treat;-) Peter. |
#2
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![]() "CV" wrote in message ... Mal wrote: Hi does anyone know the formula for excel so it will add the minutes after the decimal and convert them to hours. I found it easier to do hours and minutes in separate Excel columns. Say J is the hours column and K is minutes for each entry. Then we sum up total hours, including decimal fractions of hours, in a hidden L column: L10=L9+J10+K10/60 (note: L9 was the previous total, before this entry) Then the total time in hours and minutes is represented in column M (hours) and N (minutes) respectively: M10=INTEGER(L10) N10=L10*60-M10*60 Cheers CV At the risk of being too trivial, if the figures are already input, can split them by: say hour:mins in A1, put B1=INT(A1) (gives hours in B1), C1=(A1-B1)*100 (gives minutes in C1) Keith |
#3
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Keith W wrote:
At the risk of being too trivial, if the figures are already input, can split them by: say hour:mins in A1, put B1=INT(A1) (gives hours in B1), C1=(A1-B1)*100 (gives minutes in C1) Yep, that would do the job for one single entry. However it would not allow you to add two or more entries to make a total. To keep a running total of your flying time you need something a bit more elaborate. CV |
#4
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![]() say hour:mins in A1, put B1=INT(A1) (gives hours in B1), C1=(A1-B1)*100 (gives minutes in C1) Yep, that would do the job for one single entry. However it would not allow you to add two or more entries to make a total. Yes - but I was putting over the principal. I assume that the list of times is in (say) column A. Set dummy columns B and C to carry the split times - copy the formula down as far as necessay, add and revert back concatenated time to bottom of column A (using the contraction descibed earlier). Keith |
#5
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I formatted the cell to "Time" and display hh:mm
Then when you "SUM" the column, the math is correct. to get the totals to total a large number of hours.. like 310:20 (310 hrs 20 minutes) log book total.. you will need to pick the hh:mm:ss format. the display will now read 310:20:00 BT "Mal" wrote in message ... Hi does anyone know the formula for excel so it will add the minutes after the decimal and convert them to hours. Need to check my log book times and make a database off information types flown etc. EG 1.33 1.56 =2.89 Needs to say 60 mins is one hour so 1.33 1.56 =3.29 ??????????????? =SUM(E1:E23) =IF(A31000,TIMEVALUE(LEFT(A3,1)&":"&RIGHT(A3,2)),T IMEVALUE(LEFT(A3,2)&":"&RIGHT(A3,2))) The formatting of the cells in column B is HH:MM. Thanks Mal |
#6
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At 12:00 12 December 2004, Mal wrote:
Hi does anyone know the formula for excel so it will add the minutes after the decimal and convert them to hours. format the cells to h:mm you can also format to hh:mm or even to hh:mm:ss when adding two cells is likely to lead to hours in excess of 9 format [hh]:mm otherwise the sum will go wrong enter the times as 1:27 (1 hour 27 min) best rgrds Chris |
#7
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Chris Kaminski wrote:
At 12:00 12 December 2004, Mal wrote: Hi does anyone know the formula for excel so it will add the minutes after the decimal and convert them to hours. format the cells to h:mm you can also format to hh:mm or even to hh:mm:ss when adding two cells is likely to lead to hours in excess of 9 format [hh]:mm otherwise the sum will go wrong enter the times as 1:27 (1 hour 27 min) best rgrds Chris What is VERY annoying with that solution is that you cannot enter flights less than one hour by simply writing the number of minutes. Eg. for a 23 minute flight you actually _have_ to write 0:27 which means you have to press four keys instead of two. CV |
#8
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CV wrote:
Eg. for a 23 minute flight you actually _have_ to write 0:27 which means you have to press four keys oops, I meant 0:23 of course instead of two. CV |
#9
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![]() "Mal" wrote in message ... Hi does anyone know the formula for excel so it will add the minutes after the decimal and convert them to hours. One way is to put hours in one cell and minutes in the other and then convert all to minutes in a non-displayed cell [(hours X 60) + minutes]. At the bottom of the page you add together all of the minutes and then convert back to hours and minutes by using the interger (INT) function. To get the hours, use the formula [Int (minutes/60)] =hours. To recover the fraction of an hour in minutes, multiply the hours (from the previous formula) times 60 and then subtract from the minutes. Clear as mud? Vaughn Need to check my log book times and make a database off information types flown etc. EG 1.33 1.56 =2.89 Needs to say 60 mins is one hour so 1.33 1.56 =3.29 ??????????????? =SUM(E1:E23) =IF(A31000,TIMEVALUE(LEFT(A3,1)&":"&RIGHT(A3,2)),T IMEVALUE(LEFT(A3,2)&":"&RIGHT( A3,2))) The formatting of the cells in column B is HH:MM. Thanks Mal |
#10
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You don't need Excel. Just go sailing on the Great Lakes in November.
They say that the waves turn the minutes to hours... Bob K. |
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