WORKDAY

Supported, behaves as documented

Category: Date and time · Last tested 2026-09-01

Real compatibility results for the WORKDAY function: executed in Excel for the web, Google Sheets and LibreOffice Calc, with desktop Excel behavior from Microsoft’s official documentation (we do not run desktop Excel — Excel for the web is a different application and is executed separately). Syntax and links to that documentation are below.

Support matrix

Engine	Documented	Live-tested	Verdict
Excel (desktop)	Yes	No — documented only	n/a
Excel for the web	—	Yes (recalc, 2026-09-01)	Supported, behaves as documented
Google Sheets	Yes	Yes (Drive import, 2026-08-29)	Supported, behaves as documented
LibreOffice Calc	Yes	Yes (25.8.7.3, 2026-07-29)	Supported, behaves as documented

LibreOffice version history

We executed the same test cases under each LibreOffice release to show exactly when WORKDAY’s support changed — not documentation claims, real results.

LibreOffice version	Verdict	Tested
24.2.0.3	Supported, behaves as documented	2026-08-29
24.8.7.2	Supported, behaves as documented	2026-08-29
25.2.0.3	Supported, behaves as documented	2026-08-29
25.8.7.3	Supported, behaves as documented	2026-07-29

Executed test cases

Excel for the web (executed 2026-09-01 via OneDrive recalculation)

These values come from Excel for the web, not from desktop Excel. They are two different implementations of the calculation engine, and this run measured only the web one: the corpus was uploaded to OneDrive as .xlsx, recalculated by Excel for the web on open, and downloaded again for readback. Excel for the web is a rolling service with no pinnable version, so the run is identified by its date. Where a value here disagrees with the Expected column — which is Microsoft’s documentation of the desktop product — we cannot tell you whether the web engine diverges from the desktop one or the documentation is wrong about both, because we do not run desktop Excel.

Formula	Description	Result	Expected	Verdict
=WORKDAY(DATE(2024,1,1),5)	5 working days after Mon Jan 1, 2024, no holidays supplied	45299	45299 Provenance Jan 1, 2024 (Mon) + 5 workdays, skipping the Jan 6-7 weekend, = Jan 8, 2024 = serial 45299	Matched
=WORKDAY(DATE(2024,1,1),5,DATE(2024,1,3))	Same start/offset as WORKDAY_basic_no_holidays but with Jan 3 excluded as a holiday, pushing the result one calendar day later	45300	45300 Provenance With Jan 3 excluded, the 5th workday becomes Jan 9, 2024 = serial 45300	Matched
=WORKDAY(DATE(2024,1,1),5,A2:A3)	holidays argument as a multi-cell range (Jan 3 and Jan 4 both excluded)	45301	45301 Provenance With both Jan 3 and Jan 4 excluded, the 5th workday becomes Jan 10, 2024 = serial 45301	Matched
=WORKDAY(DATE(2024,1,10),-5)	Negative days argument counts backward from start_date instead of forward. Verified via https://support.microsoft.com/en-us/office/workday-function-f764a5b7-05fc-4494-9486-60d494efbf33 ("A positive value for days yields a future date; a negative value yields a past date")	45294	45294 Provenance Jan 10, 2024 (Wed) - 5 workdays, skipping the Jan 6-7 weekend, = Jan 3, 2024 = serial 45294	Matched

Google Sheets (executed 2026-08-29 via Drive import)

Google Sheets is a rolling service with no pinnable version, so this run is identified by its date. The corpus was imported to Drive as .xlsx, recalculated by Sheets, and exported back for readback.

Formula	Description	Result	Expected	Verdict
=WORKDAY(DATE(2024,1,1),5)	5 working days after Mon Jan 1, 2024, no holidays supplied	45299.0	45299 Provenance Jan 1, 2024 (Mon) + 5 workdays, skipping the Jan 6-7 weekend, = Jan 8, 2024 = serial 45299	Matched
=WORKDAY(DATE(2024,1,1),5,DATE(2024,1,3))	Same start/offset as WORKDAY_basic_no_holidays but with Jan 3 excluded as a holiday, pushing the result one calendar day later	45300.0	45300 Provenance With Jan 3 excluded, the 5th workday becomes Jan 9, 2024 = serial 45300	Matched
=WORKDAY(DATE(2024,1,1),5,A2:A3)	holidays argument as a multi-cell range (Jan 3 and Jan 4 both excluded)	45301.0	45301 Provenance With both Jan 3 and Jan 4 excluded, the 5th workday becomes Jan 10, 2024 = serial 45301	Matched
=WORKDAY(DATE(2024,1,10),-5)	Negative days argument counts backward from start_date instead of forward. Verified via https://support.microsoft.com/en-us/office/workday-function-f764a5b7-05fc-4494-9486-60d494efbf33 ("A positive value for days yields a future date; a negative value yields a past date")	45294.0	45294 Provenance Jan 10, 2024 (Wed) - 5 workdays, skipping the Jan 6-7 weekend, = Jan 3, 2024 = serial 45294	Matched

LibreOffice Calc 25.8.7.3 (tested 2026-07-29)

Formula	Description	Result	Expected	Verdict
=WORKDAY(DATE(2024,1,1),5)	5 working days after Mon Jan 1, 2024, no holidays supplied	45299	45299 Provenance Jan 1, 2024 (Mon) + 5 workdays, skipping the Jan 6-7 weekend, = Jan 8, 2024 = serial 45299	Matched
=WORKDAY(DATE(2024,1,1),5,DATE(2024,1,3))	Same start/offset as WORKDAY_basic_no_holidays but with Jan 3 excluded as a holiday, pushing the result one calendar day later	45300	45300 Provenance With Jan 3 excluded, the 5th workday becomes Jan 9, 2024 = serial 45300	Matched
=WORKDAY(DATE(2024,1,1),5,A2:A3)	holidays argument as a multi-cell range (Jan 3 and Jan 4 both excluded)	45301	45301 Provenance With both Jan 3 and Jan 4 excluded, the 5th workday becomes Jan 10, 2024 = serial 45301	Matched
=WORKDAY(DATE(2024,1,10),-5)	Negative days argument counts backward from start_date instead of forward. Verified via https://support.microsoft.com/en-us/office/workday-function-f764a5b7-05fc-4494-9486-60d494efbf33 ("A positive value for days yields a future date; a negative value yields a past date")	45294	45294 Provenance Jan 10, 2024 (Wed) - 5 workdays, skipping the Jan 6-7 weekend, = Jan 3, 2024 = serial 45294	Matched

Docs & syntax

Excel (desktop): official documentation
Google Sheets: official documentation
LibreOffice Calc: official documentation

Related how-to recipes

How to add business days to a date

Compared against other functions

WORKDAY vs NETWORKDAYS: two sides of business days