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NETWORKDAYS function ​

Note: This draft page is under construction 🚧

Overview ​

NETWORKDAYS is a function of the Date and Time category that calculates the number of working days between two dates, excluding weekends (Saturday and Sunday by default) and optionally specified holidays.

Usage ​

Syntax ​

NETWORKDAYS(start_date, end_date, [holidays]) => workdays

Argument descriptions ​

  • start_date (number, required). The start date expressed as a serial number.
  • end_date (number, required). The end date expressed as a serial number.
  • holidays (array or range, optional). A list of dates to exclude from the calculation, expressed as serial numbers.

Additional guidance ​

  • If the supplied start_date and end_date arguments have fractional parts, NETWORKDAYS uses their floor values.
  • If start_date is later than end_date, the function returns a negative number.
  • Weekend days are Saturday and Sunday by default. Use NETWORKDAYS.INTL for custom weekend definitions.
  • Empty cells in the holidays array are ignored.
  • The calculation includes both the start and end dates if they are workdays.

Returned value ​

NETWORKDAYS returns a number representing the count of working days between the two dates.

Error conditions ​

  • In common with many other IronCalc functions, NETWORKDAYS propagates errors that are found in its arguments.

  • If fewer than 2 or more than 3 arguments are supplied, then NETWORKDAYS returns the #ERROR! error.

  • If the start_date or end_date arguments are not (or cannot be converted to) numbers, then NETWORKDAYS returns the #VALUE! error.

  • If the start_date or end_date values are outside the valid date range, then NETWORKDAYS returns the #NUM! error.

  • If the holidays array contains non-numeric values, then NETWORKDAYS returns the #VALUE! error.

  • For more information about the different types of errors that you may encounter when using IronCalc functions, visit our Error Types page.

Details ​

IronCalc utilizes Rust's chrono crate to implement the NETWORKDAYS function. The function treats Saturday and Sunday as weekend days.

Examples ​

See some examples in IronCalc.