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Date and Time - WEEKDAY Function
Description
The WEEKDAY function returns the day of the week corresponding to a date. The day is given as an integer, ranging from 1 (Sunday) to 7 (Saturday), by default
Syntax
WEEKDAY (serial_number, [return_type])
Arguments
| Argument | Description | Required/ Optional |
|---|---|---|
| Serial_number | A sequential number that represents the date of the day you are trying to find. Dates should be entered by using the DATE function, or as results of other formulas or functions. |
Required |
| Return_type | A number that determines the type of return value. Look at the Return Type Table given below. |
Optional |
Return Type Table
| Return_type | Number Returned |
|---|---|
| 1 or omitted | Numbers 1 (Sunday) through 7 (Saturday). Behaves like previous versions of Microsoft Excel. |
| 2 | Numbers 1 (Monday) through 7 (Sunday). |
| 3 | Numbers 0 (Monday) through 6 (Sunday). |
| 11 | Numbers 1 (Monday) through 7 (Sunday). |
| 12 | Numbers 1 (Tuesday) through 7 (Monday). |
| 13 | Numbers 1 (Wednesday) through 7 (Tuesday). |
| 14 | Numbers 1 (Thursday) through 7 (Wednesday). |
| 15 | Numbers 1 (Friday) through 7 (Thursday). |
| 16 | Numbers 1 (Saturday) through 7 (Friday). |
| 17 | Numbers 1 (Sunday) through 7 (Saturday). |
Notes
Microsoft Excel stores dates as sequential serial numbers so they can be used in calculations. By default, January 1, 1900 is serial number 1, and January 1, 2008 is serial number 39448 because it is 39,448 days after January 1, 1900
If serial_number is out of range for the current date base value, WEEKDAY returns the #NUM! error value.
If return_type is out of the range specified in the table above, WEEKDAY returns the #NUM! error value.
If the specified serial_number cannot be recognized as a numeric value, WEEKDAY returns the #VALUE! error value.
If the specified return_type cannot be recognized as a numeric value, WEEKDAY returns the #VALUE! error value.
Applicability
Excel 2007, Excel 2010, Excel 2013, Excel 2016
Example
