Note: The other languages of the website are Google-translated. Back to English
English English

How to calculate date/time overlap in days or hours in Excel?

Supposing there are some date ranges recorded in a sheet, and now you want to calculate how many days or hours of those date ranges overlap with a specific date range as below screenshot shown. Except to compare date ranges and calculate one by one, here in this article, I introduce a formula to quickly solve this task in Excel.
doc date overlap 1

Calculate date/time overlap with formula

arrow blue right bubble Calculate date/time overlap with formula

Select a blank cell that you want to place the calculated result, enter this formula =MAX(MIN($G$2,C2)-MAX($G$1,B2)+1,0), and drag auto fill handle down to fill this formula to other cells. See screenshot:
doc date overlap 2

This formula also can calculate the time overlap in hours.

Tip.If you want to quickly count weekdays/weekends/specific day between two dates, please try to use the Kutools for Excel’s Formular Helper as shown in the following screenshot. It’s full function without limitation in 30 days, please download and have a free trial now.

doc count day between dates

The Best Office Productivity Tools

Kutools for Excel Solves Most of Your Problems, and Increases Your Productivity by 80%

  • Reuse: Quickly insert complex formulas, charts and anything that you have used before; Encrypt Cells with password; Create Mailing List and send emails...
  • Super Formula Bar (easily edit multiple lines of text and formula); Reading Layout (easily read and edit large numbers of cells); Paste to Filtered Range...
  • Merge Cells/Rows/Columns without losing Data; Split Cells Content; Combine Duplicate Rows/Columns... Prevent Duplicate Cells; Compare Ranges...
  • Select Duplicate or Unique Rows; Select Blank Rows (all cells are empty); Super Find and Fuzzy Find in Many Workbooks; Random Select...
  • Exact Copy Multiple Cells without changing formula reference; Auto Create References to Multiple Sheets; Insert Bullets, Check Boxes and more...
  • Extract Text, Add Text, Remove by Position, Remove Space; Create and Print Paging Subtotals; Convert Between Cells Content and Comments...
  • Super Filter (save and apply filter schemes to other sheets); Advanced Sort by month/week/day, frequency and more; Special Filter by bold, italic...
  • Combine Workbooks and WorkSheets; Merge Tables based on key columns; Split Data into Multiple Sheets; Batch Convert xls, xlsx and PDF...
  • More than 300 powerful features. Supports Office/Excel 2007-2019 and 365. Supports all languages. Easy deploying in your enterprise or organization. Full features 30-day free trial. 60-day money back guarantee.
kte tab 201905

Office Tab Brings Tabbed interface to Office, and Make Your Work Much Easier

  • Enable tabbed editing and reading in Word, Excel, PowerPoint, Publisher, Access, Visio and Project.
  • Open and create multiple documents in new tabs of the same window, rather than in new windows.
  • Increases your productivity by 50%, and reduces hundreds of mouse clicks for you every day!
officetab bottom
Comments (0)
No ratings yet. Be the first to rate!
There are no comments posted here yet
Leave your comments
Posting as Guest
Rate this post:
0   Characters
Suggested Locations