Question: How do i count unique distinct records (B1:B35) in a date range (A1:A35)?

Answer: Here is the formula in D4. See picture below.

=SUM(IF((MATCH(INDIRECT("B"&MATCH(D1,A1:A35)&":B"&MATCH(D2,A1:A35)),INDIRECT("B"&MATCH(D1,A1:A35)&":B"&MATCH(D2,A1:A35)),0))>=(ROW(INDIRECT("B"&MATCH(D1,A1:A35)&":B"&MATCH(D2,A1:A35)))-(MIN(ROW(INDIRECT("B"&MATCH(D1,A1:A35)&":B"&MATCH(D2,A1:A35))))-1))=TRUE,1,0))

Download excel sample file for this tutorial.
count-unique-records-between-a-date-range.xls
(Excel 97-2003 Workbook *.xls)

Functions in this tutorial:

IF(logical_test;[value_if:true];[value_if_false])
Checks whether a condition is met, and returns one value if TRUE, and another value if FALSE

ROW(reference)
returns the row number of a reference

MATCH(lookup_value;lookup_array; [match_type])
Returns the relative position of an item in an array that matches a specified value

INDIRECT(ref_text;[a1])
Returns the reference specified by a text string

SUM(number1,[number2],)
Adds all the numbers in a range of cells

MIN(number1;[number2];
Returns the smallest number in a set of values. Ignores logical values and text.

This blog article is one out of twelve articles on the same subject "count unique and unique distinct".

• Count unique values in a column in excel
• Count unique distinct values in two columns in excel
• Count unique distinct values in three columns combined in excel
• Count unique and unique distinct values in a multicolumn range in excel
  
• Count unique values and unique distinct values in two ranges combined
  
• Count unique values and unique distinct values in three ranges combined in excel
• How to count unique combined column values
• How to count unique distinct records in a date range
  
• Count unique distinct records in a date range and a numeric range in excel
  
• Count unique distinct values in two columns with date criteria in excel
  
• Count unique distinct months in excel
• Count duplicate distinct values in a column in excel
• Most common value between two dates in excel

Related posts:

1. Count unique distinct records in a date range and a numeric range in excel
2. Count unique records by date in excel
3. Count date records between two dates in a range in excel
4. Count unique and unique distinct values in a multicolumn range in excel
5. Count unique distinct values in two columns with date criteria in excel
6. Count unique distinct months in excel
7. Count unique distinct values using date criteria in a range in excel
8. Count unique distinct values in three columns combined in excel
9. Count unique distinct values in two columns in excel
10. Count unique values and unique distinct values in two ranges combined