WEEKDAY

The WEEKDAY function in Excel returns a number that corresponds to the day of the week for a given date. This function is useful for analyzing and organizing dates based on the day of the week.

Syntax 🔗

=WEEKDAY(serial_number, [return_type])

serial_number The date for which you want to determine the day of the week.
return_type (Optional) A number that specifies which numbering system to use for days of the week. Defaults to 1 (Sunday=1, Monday=2, etc.) if omitted.

About WEEKDAY 🔗

When you're dealing with dates in Excel and need to pinpoint which day of the week a particular date falls on, the WEEKDAY function comes in handy. It assigns a numerical value to each day of the week, allowing for easy categorization and analysis of dates based on weekdays. Whether you're organizing a schedule, tracking trends, or conducting any analysis that involves weekdays, WEEKDAY simplifies the process by providing a systematic way to identify weekdays based on the input date. By utilizing the optional return_type parameter, you can customize how weekdays are numbered according to your preference, making it flexible to adapt to different date systems or conventions.

Examples 🔗

If you want to determine which day of the week falls on a specific date, such as April 15, 2022, you can use the formula: =WEEKDAY("4/15/2022")

For advanced usage, if you prefer a different numbering system where Monday is considered the first day of the week, you can use: =WEEKDAY("4/15/2022", 2)

Notes 🔗

Ensure that the serial_number argument is a valid Excel date or a reference to a cell containing a date. By adjusting the return_type parameter, you can control how the days of the week are numbered in the function's output. This function is particularly useful in scenarios where you need to categorize or analyze data based on weekdays.

Questions 🔗

How does the WEEKDAY function handle serial_number input?

The WEEKDAY function interprets the serial_number input as an Excel date value or a reference to a cell containing a valid date value. It then calculates and returns a number corresponding to the day of the week for that date.

Is the return_type parameter required in the WEEKDAY function?

No, the return_type parameter is optional in the WEEKDAY function. If omitted, the default numbering system where Sunday is considered the first day ( Sunday=1, Monday=2, etc.) is applied.

Can I customize the numbering of days of the week in the WEEKDAY function?

Yes, you can customize the numbering of days of the week by specifying a different numbering system using the optional return_type argument. This allows flexibility in how days of the week are represented in the function's output.

WORKDAY.INTL
WORKDAY
NETWORKDAYS
EDATE
EOMONTH

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