Excel NETWORKDAYS.INTL function
Counts the work days between two dates with the weekend you choose. In Spanish Excel it is called DIAS.LAB.INTL.
Syntax
English Excel
=NETWORKDAYS.INTL(start_date, end_date, [weekend], [holidays])
Spanish Excel (Mexico)
=DIAS.LAB.INTL(fecha_inicial, fecha_final, [fin_de_semana], [días_no_laborables])
Spanish Excel (Spain, Latin America)
=DIAS.LAB.INTL(fecha_inicial; fecha_final; [fin_de_semana]; [días_no_laborables])
| Argument | What it is |
|---|---|
| start_date | The first date. |
| end_date | The last date. |
| weekendoptional | 1 Sat–Sun, 7 Fri–Sat, 11 Sunday only, or a text such as "0000011". |
| holidaysoptional | A range with the holidays. |
Example
NETWORKDAYS and WORKDAY assume Saturday and Sunday off. Their .INTL versions accept another weekend: 11 is Sunday only, 7 is Friday and Saturday, or a text such as "0000011" (1 = day off, Monday to Sunday). The last argument is the holidays.
=NETWORKDAYS.INTL(B2,C2,11,$G$2:$G$4)
Common mistake
For businesses open Monday to Saturday use 11. In the 7-digit text the first is Monday and 1 means a day off.
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Practice NETWORKDAYS.INTL
Type the formula in the sheet and check it instantly. Spanish or English function names both work. See all lessons
Work days Monday to Saturday
NETWORKDAYS and WORKDAY assume Saturday and Sunday off. Their .INTL versions accept another weekend: 11 is Sunday only, 7 is Friday and Saturday, or a text such as "0000011" (1 = day off, Monday to Sunday). The last argument is the holidays.
=NETWORKDAYS.INTL(B2,C2,11,$G$2:$G$4)DIAS.LAB.INTL = NETWORKDAYS.INTLDIA.LAB.INTL = WORKDAY.INTLIn D2, count the work days between start and end for a business open Monday to Saturday, excluding the holidays in G2:G4.
| A | B | C | D | E | F | G | H | |
|---|---|---|---|---|---|---|---|---|
| 1 | Order | Start | End | Work days | Due in 15 days | Holidays | ||
| 2 | P-101 | 03/03/2025 | 03/28/2025 | 03/17/2025 | ||||
| 3 | P-102 | 04/07/2025 | 04/30/2025 | 04/18/2025 | ||||
| 4 | P-103 | 04/28/2025 | 05/16/2025 | 05/01/2025 | ||||
| 5 | P-104 | 03/10/2025 | 03/21/2025 | |||||
| 6 | P-105 | 05/05/2025 | 06/06/2025 | |||||
| 7 |
Tip: while typing, click a cell or drag across several to insert their reference. F4 anchors the reference with $.
Frequently asked questions
- What is NETWORKDAYS.INTL called in Spanish?
- In Spanish Excel it is DIAS.LAB.INTL. The formula =NETWORKDAYS.INTL(B2,C2,11,$G$2:$G$4) is written =DIAS.LAB.INTL(B2;C2;11;$G$2:$G$4) (or with commas in Mexico).
- Why does NETWORKDAYS.INTL use semicolons in some Excel versions?
- It depends on regional settings. Where the comma is the decimal mark (Spain, much of South America), Excel separates arguments with semicolons. English Excel and Mexican Spanish Excel use commas.
- What is the most common NETWORKDAYS.INTL mistake?
- For businesses open Monday to Saturday use 11. In the 7-digit text the first is Monday and 1 means a day off.