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Excel Formula: Find Earliest Date and Latest Date for Each Group

doc convert date to julia 1

In this tutorial, it provides formulas to find the earliest date and latest date for each group in Excel.

If you want to follow along with this tutorial, please download the example spreadsheet.
doc convert date to julia 1

Generic formula:

Find the earliest date of each group

{MIN(IF(group_rng=group,startD_rng))}

Find the latest date of each group

{MAX(IF(group_rng=group,startD_rng))}

Syntaxt and Arguments

Group_rng: the cell range that contains all group names.
Group: the group whose earliest date and latest date you want to find out.
StartD_rng: the cell range that contains all starting dates of the groups.

Return Value

The formulas return a date as a numeric value. Since the date is stored as number in Excel, to directly view the date, you can format the numeric value in a date format as you need after using the formula.

How this formula works

Here is a table, column B3:B8 contains department names, column C3:C8 contains the different project names in the departments, column D3:D8 is the start dates of each project, and the end dates of each group are in column E3:E8. For finding the earliest starting date and latest ending date from each department (A and B), please use below formula:

Find the earliest date

=MIN(IF($B$3:$B$8=B11,$D$3:$D$8))

Press Shift + Ctrl + Enter keys to get the correct array result.
doc convert date to julia 1 

Then drag the auto fill handle down to cells which need this formula.
doc convert date to julia 1

Then keep the formula cells selected, press Ctrl +1 to display the Format Cells dialog, then under Number tab, click at Date in the Category list, then select one type of date from right Type section.
doc convert date to julia 1

Click OK, now the results are displayed as dates.
doc convert date to julia 1

Find the latest date for each department

=MAX(IF($B$3:$B$8=B11,$E$3:$E$8))

Press Shift + Ctrl + Enter keys, drag fill handle to apply the array formula to other cells as need, and format the cells as dates.
doc convert date to julia 1

Explanation

IF function: tests for a specific condition.

In the array formula {IF($B$3:$B$9=B11,$D$3:$D$8)}, it returns
{43597;FALSE;43952;43802;FALSE;FALSE;FALSE}

MIN function: to find the minimum value in a range or an array.

={MIN (IF($B$3:$B$8=B11,$D$3:$D$8))}
={MIN(43597;FALSE;43952;43802;FALSE;FALSE)}
=43597

MAX function: to find the largest value in a range or an array.

={MAX(IF($B$3:$B$8=B11,$E$3:$E$8))}
={MAX(44158;FALSE;44654;44013;FALSE;FALSE)}
=44684

Remark

If you are using Excel 2019 or Excel 365, you can use the MINIFS and MAXIFS functions to quickly find the earliest and latest dates of each group.

Generic Formula

Find earliest date for group

MINIFS(startD_rng,group_rng,group)

Find latest date for group

MAXIFS(startD_rng,group_rng,group)

Use the below formulas with above example:

=MINIFS($D$3:$D$8,$B$3:$B$8,B11)
=MAXIFS($E$3:$E$8,$B$3:$B$8,B11)

Relative Formulas

Relative Functions


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