Assistance with Array Function for Date Calculation

Hi all,

I've created a spreadsheet full of formulas to work out dates for meetings and when to call for papers, etc. One of the columns is calculated from a rigid set of dates using an array formula, whereas everything else is calculated from the main input date. I need assistance to make the array function work better.

At the moment, I'm using the MAX function with <, it is picking the nearest date before the date in row K. When using MIN and >, it gives me the nearest date after row K. I'm trying to make it so that the date which appears in row D is the nearest date on the SMTDates range regardless of past or future so long as it falls between the dates in rows C and F. I've tried utilising the INDEX function, but have been unable to make that work to any great effect either.

Attach your workbook directly here, please.

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This proposed solution uses two helper columns headed 'Max <' and 'Min >', which may be hidden for aesthetic purposes. The formulas for the two helpers could be incorporated into the formula for column D, but I feel that it is easier to see what they are doing if they are separated.
The array entered formula that populates the 'Max <' column is:

Formula:

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The array entered formula that populates the 'Min >' column is:

Formula:

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The array entered formula that populates column D is:

Formula:

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*Array entered formulas are confirmed by pressing CTRL+SHIFT+ENTER to activate the array, not just ENTER. You will know the array is active when you see curly braces { } appear around your formula. If you do not CTRL+SHIFT+ENTER you will get an error or a clearly incorrect answer.
Let us know if you have any questions.

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