It appears that Frank Kabel's approach works for what I want, but if you know
a better way I am still willing to give it a try.

The times are my flight times and the breakdowns of what time of time it
counted for.

My log is set up with Column A: date, Column B: N #, Column C: The type of
aircraft, Column D:The origin of the flight, Column E: stops on the way,
Column F: the destination, Column G: the total time, Column H: Single engine
land time, Column I: Multi engine land time, Column J: # of landings, Column
K: Night time, Column L: Actual IFR time, Column M: Hood time, Column N: # of
approaches, Column O: sim time, Column P: Cross country time, Column Q: solo
time, Column R: PIC time, Column S: dual time. Each row consist of the date
and times for only one flight, if there is more than one flight in a day I
log each flight seperatly. A flight is logged with only one date.

"Ragdyer" wrote:

How much of what time ... flight time?
How is your log configured?
Do single flight duration numbers (times) span multiple dates (rows)?

Post back with column and row breakdowns and explanations of your logging
procedures.
--
Regards,

RD

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"TylerMaricich" wrote in message
...
I'm a pilot trying to use excel 2002 to calculate my logbook, and need to
know how much of the time was in the last 90 days, I'm looking for a
formula
that will help me sort, and add the data from just the last 90 days.