Get the cell address using excel cell formula

Question

My date range starting point can vary at any column, but the row is always fixed at row 2. For example, my current date range covers from A2:AB2
col A | col B | col C | ...
blank | 1-Jan | 2-Jan | ...

I need to achieve the following: If I enter a date(eg. 2-Jan) at cell A5, cell B5 will display the cell address ($C$2) which contains the date (2-Jan).

How do I achieve this?

Answer 1

The following formula in cell B5 should do the job:

  =IFERROR(ADDRESS(2,MATCH(A5,$A2:$AB2,0)),"")

Note that row 2 is hard-coded in the formula by the 2 in the address function.