Skip to content
Free Excel Tutorials
  • Home
  • Excel For Beginners
  • Excel Intermediate
  • Advanced Excel For Experts

Data Analysis

  • Randomize/ Shuffle List in Excel
  • Excel Pie Chart
  • How To Create Frequency Distribution in Excel
  • How To Filter Data in Excel
  • Everything about Charts in Excel

References

  • Convert text string to valid reference in Excel using Indirect function
  • How to use Excel TRANSPOSE Function
  • How to get last row in text data in Excel
  • How to get relative column numbers in a range in Excel
  • CHOOSE function: Description, Usage, Syntax, Examples and Explanation

Data Validations

  • Excel Data validation only dates between
  • Excel Data validation no punctuation
  • Excel Data validation exists in list
  • Excel Data validation must begin with
  • Data validation must not exist in list

Two ways to sum time over 30 minutes in Excel

by

To sum the total amount of time over 30 minutes, given a set of times that represent duration, you can use the SUMPRODUCT and TIME functions. Alternatively, use SUMIFS and COUNTIFS functions.

Formula

=SUMPRODUCT((range-TIME(0,30,0))*(range>TIME(0,30,0)))

Explanation

 In the example shown, the formula in G5 is:

=SUMPRODUCT((times-TIME(0,30,0))*(times>TIME(0,30,0)))

where “times” is the named range C5:C14.

How this formula works

This formula uses the SUMPRODUCT function to sum the result of two expressions that yield arrays. The goal is to sum only time greater than 30 minutes, the “surplus” or “extra” time.  The first expression subtracts 30 minutes from every time in the named range “times”:

times-TIME(0,30,0)

This results in an array like this:

{-0.00347222222222222;0.00694444444444444;0.00347222222222222;-0.00694444444444444;0.0138888888888889;0.00694444444444444;0;0.00486111111111111;0.00833333333333333;-0.0104166666666667}

The second expression is a logical test for all times greater than 30 minutes:

times>TIME(0,30,0)

This creates an array of TRUE FALSE values:

{FALSE;TRUE;TRUE;FALSE;TRUE;TRUE;FALSE;TRUE;TRUE;FALSE}

Inside SUMPRODUCT, these two arrays are multiplied together to create this array:

{0;0.00694444444444444;0.00347222222222222;0;0.0138888888888889;0.00694444444444444;0;0.00486111111111111;0.00833333333333333;0}

Notice negative values in the first array are now zeros. During multiplication, the TRUE FALSE values are converted to 1 and zero, so FALSE values “cancel out” times that are not greater than 30 min. Finally, SUMPRODUCT returns the sum of all values in the array, 1 hour and 4 minutes (1:04).

Alternative with SUMIFS and COUNTIFS

By itself, SUMIFS cannot sum the delta of time values greater than 30 minutes. SUMIFS and COUNTIFS can be used together to get the same result as SUMPRODUCT above:

=SUMIFS(times,times,">0:30")-(COUNTIFS(times,">0:30")*"0:30")

Times over 24 hours

If total times may exceed 24 hours, use this a custom time format like this:

[h]:mm:ss

The square bracket syntax tells Excel not to “roll over” times greater than 24 hours.

With a helper column

As shown in the example, you can also add a helper column to calculate and sum time deltas. The formula in D5, copied down, is:

=MAX(C5-"00:30",0)

Here, MAX is used to get rid of negative time deltas, caused by times in column C that are less than 30 minutes. Notice the result in D15 is the same as the result in G5.

Post navigation

Previous Post:

DECIMAL function: Description, Usage, Syntax, Examples and Explanation

Next Post:

AVERAGE function: Description, Usage, Syntax, Examples and Explanation

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Learn Basic Excel

Ribbon
Workbook
Worksheets
Format Cells
Find & Select
Sort & Filter
Templates
Print
Share
Protect
Keyboard Shortcuts

Categories

  • Charts
  • Data Analysis
  • Data Validation
  • Excel Functions
    • Cube Functions
    • Database Functions
    • Date and Time Functions
    • Engineering Functions
    • Financial Functions
    • Information Functions
    • Logical Functions
    • Lookup and Reference Functions
    • Math and Trig Functions
    • Statistical Functions
    • Text Functions
    • Web Functions
  • Excel VBA
  • Excel Video Tutorials
  • Formatting
  • Grouping
  • Others

Logical Functions

  • How to return blank in place of #DIV/0! error in Excel
  • Extract multiple matches into separate rows in Excel
  • AND function: Description, Usage, Syntax, Examples and Explanation
  • Complete List of Excel Logical Functions, References and Examples
  • How to use Excel NOT Function

Date Time

  • Get first day of month in Excel
  • NOW function: Description, Usage, Syntax, Examples and Explanation
  • How to calculate Next working/business day in Excel
  • How to Calculate Age in Excel
  • Count day of week between dates in Excel

Grouping

  • If cell contains one of many things in Excel
  • Group numbers with VLOOKUP in Excel
  • Calculate conditional mode with criteria in Excel
  • Group times into unequal buckets in Excel
  • How to randomly assign data to groups in Excel

General

  • Delete Blank Rows at Once in Excel
  • Common Errors in Excel
  • How to calculate decrease by percentage in Excel
  • Convert column number to letter in Excel
  • Basic error trapping example in Excel
© 2025 xlsoffice . All Right Reserved. | Teal Smiles | Abbreviations And Their Meaning