NETWORKDAYS
Supported, behaves as documentedCategory: Date and time · Last tested 2026-08-06
Real, executed compatibility results for the NETWORKDAYS function across Microsoft Excel, Google Sheets, and LibreOffice Calc — verified by actually running it. Syntax and links to each vendor’s official documentation are below.
Support matrix
| Engine | Documented | Live-tested | Verdict |
|---|---|---|---|
| Excel | Yes | Not yet | n/a |
| Google Sheets | Yes | Not yet | n/a |
| LibreOffice Calc | Yes | Yes (25.8.7.3, 2026-08-06) | Supported, behaves as documented |
LibreOffice version history
We executed the same test cases under each LibreOffice release to show exactly when NETWORKDAYS’s support changed — not documentation claims, real results.
| LibreOffice version | Verdict | Tested |
|---|---|---|
| 24.2.0.3 | Supported, behaves as documented | 2026-07-19 |
| 24.8.7.2 | Supported, behaves as documented | 2026-07-19 |
| 25.2.0.3 | Supported, behaves as documented | 2026-07-24 |
| 25.8.7.3 | Supported, behaves as documented | 2026-08-06 |
Executed test cases
LibreOffice Calc 25.8.7.3 (tested 2026-08-06)
| Formula | Description | Result | Expected | Verdict |
|---|---|---|---|---|
| =NETWORKDAYS(DATE(2024,1,1),DATE(2024,1,5)) | Mon Jan 1 to Fri Jan 5, 2024, no holidays -> 5 workdays | 5 | 5 | Matched |
| =NETWORKDAYS(DATE(2024,1,1),DATE(2024,1,5),DATE(2024,1,3)) | Same range excluding one holiday (Wed Jan 3) -> 4 | 4 | 4 | Matched |
| =NETWORKDAYS(DATE(2024,1,5),DATE(2024,1,1)) | start_date after end_date returns a NEGATIVE count (not an error) | -5 | -5 | Matched |
| =NETWORKDAYS(DATE(2024,1,6),DATE(2024,1,7)) | Sat Jan 6 to Sun Jan 7, 2024 -> 0 workdays | 0 | 0 | Matched |
Docs & syntax
- Excel: official documentation
- Google Sheets: official documentation
- LibreOffice Calc: official documentation
Related how-to recipes
- How to count business days left in the month
- How to count business days between two dates
- How to count the working days in a month