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WEEKDAY Function in Excel: Syntax, Examples and Free Practice

By Rinkesh Shah, founder of Cellgrids.

WEEKDAY is an Excel Date & Time function. Returns which day of the week a date falls on, as a number.

WEEKDAY syntax

=WEEKDAY(serial_number, [return_type])

Arguments

When to use WEEKDAY

WEEKDAY is used in scheduling, deadline tracking, and reporting that spans specific date ranges.

Practice WEEKDAY online, free

Open the live Excel-style spreadsheet and try WEEKDAY yourself. No Excel install or sign-up needed to start.

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More Date & Time functions

Frequently asked questions

What does the WEEKDAY function do in Excel?

Returns which day of the week a date falls on, as a number.

What is the syntax of WEEKDAY in Excel?

The syntax is =WEEKDAY(serial_number, [return_type]). serial_number: The date or time value to evaluate; return_type: Which numbering system to use for the result (optional).

Where can I practice WEEKDAY online for free?

Open the free live spreadsheet on Cellgrids and try WEEKDAY yourself. No Excel install is needed and you can start without signing up.

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