If value matches any other in column make calculation, Algorithmic Calculation

Ident time alt lat lon
a334 0.33 2000 45 51
a336 0.33 2500 44 50
a788 0.33 5000 44 25
a521 0.33 1000 49 10
a852 0.4 2000 45 3
a956 0.5 100 20 30
a841 0.55 8000 20 63
a965 0.6 8000 24 65


I need a formula that recognizes identical times then takes the difference between the altitude, lat, long of the two identical times.

So ideally the calculation that would be performed.

Ident (a334)-(a336) 2000-2500 45-44 51-50
Ident (a334)-(a788) 2000-5000 45-44 51-25
Ident (a334)-(a521) 2000-1000 ''''''' ''''''''''
Ident (a336)-(a788) 2500-5000 '''''' '' ''''
Ident (a336)-(a521) 2500-1000
Ident (a788)-(a521) 5000-1000

I created a pivot table to try to calculate the difference but it cannot do it an a algorithmic type fashion like this. Then eventually I need to conditionally format it to if all three meet a certain criteria that it will put it in a separate chart only if all three conditions are met.

So if Ident (a334)-(a336) 500 1 1 (ex. of all three criteria being met [actual parameters not important but these values will be flagged in my conditional formatting])

This needs to then be put in a separate chart with all other data that meets all three criteria.

So the steps I need to perform this function:

1. Does Ident "x" equal Ident "y" time?

Yes: Take difference between all three parameters. Do all three meet Criteria?

Yes: Put all calculated info in separate chart if they meet all three criteria. Does Ident "x" time equal Ident "z" time?

Yes: Take difference between all three parameters. Do all three meet Criteria?

No: End

Yes: Put all calculated info in separate chart if they meet all three criteria. Does Ident "x" time equal Ident "aa" time?

No: End

No: End

No: Move on to does Ident "y" time equal Ident "z" time?

[Rinse, Wash, Repeat]Generic Algorithim.xlsx