DATES & WORKING DAYS · ORIGINAL EXERCISE
The working-day voyage
Count Monday–Friday workdays from E2 through F2, including both endpoints, excluding the holiday dates in G2:G3.
This quest practices NETWORKDAYS using a fictional business dataset. Read the sheet below, then enter the interactive quest to write and check your formula.
| Shipment | Year | Month | Day | Start serial | End serial | Holiday serial |
|---|---|---|---|---|---|---|
| S-201 | 2026 | 1 | 30 | 46052 | 46066 | 46055 |
| S-202 | 2026 | 2 | 13 | 46066 | 46080 | 46062 |
| S-203 | 2026 | 3 | 5 | 46086 | 46100 | |
| S-204 | 2026 | 4 | 17 | 46129 | 46143 |
Hints to get you started
- NETWORKDAYS excludes Saturdays and Sundays.
- Its optional third argument lists holiday date serials.
- Use E2, F2, and G2:G3.
Show the worked solution
=NETWORKDAYS(E2,F2,G2:G3)NETWORKDAYS counts eligible days inclusively. Duplicate holidays are excluded once; a holiday on a weekend does not reduce the count again.
Make the skill stick
After solving the task, explain what each reference does and why the formula answers the business question. Try the workbook download inside the quest to practice in your own spreadsheet app.
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