Ok....I think I may have solved that issue:

=IF(A1,LOOKUP(365,DATE(YEAR(NOW())+{0,1},MONTH(A1) ,DAY(A1)-1)+1-TODAY()),"")

(Amusing....all this fuss to accommodate a one-day-every-four-years
occurrence.)

***********
Regards,
Ron

XL2002, WinXP


"Rick Rothstein (MVP - VB)" wrote:

No, you are not dense... there is a problem, but it is not year-long like I
first thought... it occurs for a start date of February 29th of a leap year
with a TODAY date between January 1st and February 28th of a non leap year.

Hire Date: 29-FEB-2004 (or any leap year)
Today: 27-FEB-2007 (or any non leap year)
Calculated Difference = 2 days

Hire Date: 1-MAR-2004 (or any leap year)
Today: 27-FEB-2007 (or any non leap year)
Calculated Difference = 2 days

Both Hire dates produce the same difference. I mistakenly thought that
carried throughout the year, but the problem actually is how to handle the
collapsing of the leap day into years where that date does not exist.

Rick


"Ron Coderre" wrote in message
...
Perhaps I'm being dense....but....

Hire Date: 01-MAR-2000
Today : 27-FEB-2007

Per the formula: 2 days until the next anniversary date

The math:
Hire Date Anniversary: 01-MAR-2007
Less: Today's date : 27-FEB-2007
Equals : 2 days

Can you clarify what you discovered?

***********
Regards,
Ron

XL2002, WinXP


"Rick Rothstein (MVP - VB)" wrote:

We can trim a couple mo

=IF(A1,LOOKUP(365,((TEXT(A1,"m/d/")&YEAR(NOW())+{0,1})-TODAY())),"")

Startin' to look pretty good!

Upon further testing of my previous offering I find it fails if the
hire
date is a leap day so I'll put that in the round file and "stash" this
beauty cooked up by Ron.

Nope, it is not starting to look good at all... this formula, and Ron's
original, also get tripped up by a start date of 02/29/2000 (or any
February
29th in a proper leap year)... it happens whenever the "TODAY" date is
anywhere within the range of January 1st to February 28th. Unfortunately,
that is the least of the problems...

As it turns out, ALL of the formulas submitted so far (including Ron's
and
its variations) will produce an incorrect calculation if the TODAY date
is
anywhere within the range of January 1st to February 28th of a NON leap
year
and the start date is any day on or after March 1st of a leap year...
under
those conditions, the date difference will be one day less than it is
supposed to be. To test what I am saying, try a Start Date of March 1,
2000
and a TODAY date of February 27, 2007. There should be 3 days difference
between these days (Feb 28, Feb 29 and Mar 1), but all formulas report 2
days... and this missing day is carried forward for Start Dates up to and
including December 31, 2007.

Rick