NETWORKDAYS Function in Excel

Intermediate

Returns the number of whole working days between start_date and end_date.

Syntax

=NETWORKDAYS(start_date, end_date, [holidays])

Example

Use Case

Calculate working days to complete a project.

Common Errors to Avoid

  • Assumes Saturday and Sunday as weekends (use NETWORKDAYS.INTL for custom weekends)
  • Holidays list must be valid dates or a range reference
  • Includes both start and end dates in count

Pro Tips

Create a separate range for company holidays and reference it. For custom weekends (e.g., Friday-Saturday), use NETWORKDAYS.INTL. Always verify the result includes the correct start/end date behavior.

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NETWORKDAYS Function in Excel | Excel AI Tools