PLEASE HELP me add hours and minutes

rubrboots

New Member
Joined
Jan 24, 2005
Messages
1
I am tryin to add colums of hours and minutes. I am a pilot so I am trying to make a logbook in excel that adds the hours and minutes of each flight. We do not count seconds so I am using the [h]:mm format, which works fine until the total is greater then 24hrs. A that point it starts showing dates(day/month/year, I really dont know why) in the formula bar when the larger hour is highlighted, and the calculations are then messed up.

So to summarize, I sum a colum of hours and minutes that equal 18:56, then add that total to the my overall total of flight time of 1634:22. excel says 18:56 + 1634:22 = 1634:22. :oops:

Any help would be GREATLY appreciated, I have been struggling with this for a long, long time.

Josh
rubrboots@hotmail.com
 

Excel Facts

Which Excel functions can ignore hidden rows?
The SUBTOTAL and AGGREGATE functions ignore hidden rows. AGGREGATE can also exclude error cells and more.

daniels012

Well-known Member
Joined
Jan 13, 2005
Messages
5,219
I suggest you do use date and time, because many of your times go into the next day.

1/17/2005 5:36:00 PM in D8
1/18/2005 11:50:00 AM in E8
formula in cell F8 =ABS(D8-D9)*24

Then you should be able to sum the Column F and it will work fine.
 

tactps

Well-known Member
Joined
Jan 20, 2004
Messages
3,460
Just add them, and use the following format for the result cell:

[h]:mm

You should see 1653:18
 

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