- Excel Functions - Home
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- F.DIST Function
- F.DIST.RT Function
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- F.INV.RT Function
- F.TEST Function
- FISHER Function
- FISHERINV Function
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- FORECAST.ETS.CONFINT Function
- FORECAST.ETS.SEASONALITY Function
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- FORECAST.LINEAR Function
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- PERCENTRANK.EXC
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- PERMUT
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- STDEVPA
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- TREND
- TRIMMEAN Function
- VAR.P Function
- VAR.S Function
- VARA Function
- VARPA Function
- WEIBULL.DIST Function
- Z.TEST Function
- Web Functions
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- WEBSERVICE Function
Excel - WEEKDAY Function
WEEKDAY Function
The Excel WEEKDAY function retrieves a numeric value ranging from 1 to 7, representing a day of the week of the specific date serial number. It is categorized under the Date & Time function in Excel. Other functions like VLOOKUP, IF, and COUNTIF can also be merged with the WEEKDAY function.
For example, when the first project was completed, or the first director was hired in the company, that can be identified using the WEEKDAY function.
Compatibility
This advanced Excel function is compatible with the following versions of MS-Excel
- Excel for Microsoft 365
- Excel for Microsoft 365 for Mac
- Excel for the web
- Excel 2024
- Excel 2024 for Mac
- Excel 2021
- Excel 2021 for Mac
- Excel 2019
- Excel 2016
- Excel 2013
- Excel 2010
- Excel 2007
Syntax
The syntax of the WEEKDAY function is as follows −
=WEEKDAY(serial_number, [return_type])
Arguments
You can use the following arguments with the WEEKDAY function −
| Argument | Description | Required / Optional |
|---|---|---|
| Serial_number |
It specifies a sequential date from which the day of the week will be extracted. You may directly enter the Dates or utilize the DATE function to enter the DATE or as a result of other functions. |
Required |
| Return_type |
A numeric value that identifies 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). |
Points to Remember
- The Microsoft Excel tool saves dates as sequential serial numbers for further calculations. By default, serial number 1 is assigned to January 1, 1900, and serial number 39448 is assigned to January 1, 2008.
- If the serial_number argument exceeds the current date base value range, then the WEEKDAY function will retrieve the #NUM! error.
- If return_type contains a number other than as specified in the table above, then the WEEKDAY function will return the #NUM! error.
- If the serial_number argument contains a non-numeric value, then the WEEKDAY function will return the #VALUE! error.
- If the non-numeric value is specified in the return_type argument, then the WEEKDAY function returns the #VALUE! error.
Example of WEEKDAY Function in Excel
In this example, we will insert the WEEKDAY function in the cell range C3:C7, which indicates the day of the week.
Solution
Step 1 − Assume the sample dataset where the list of date serial numbers is specified in the range B3:B7. First, select the C2 cell and enter the formula =WEEKDAY(B2).
After that, hit the Enter tab to obtain the resulting value.
Step 2 − Moreover, move to the C3 cell and write the formula =WEEKDAY(B3,2). Here, the return_type is 2, which means the assignment of day numbers are Numbers 1 (Monday) through 7 (Sunday)
And then, hit the Enter tab to get the resulting value.
Step 3 − Furthermore, select the C4 cell and write the formula =WEEKDAY(B4,3).
After pressing the Enter tab, the WEEKDAY function will retrieve the 4 that represents the "Wednesday" of the given date serial number.
Step 4 − Similarly, double-click on the C5 cell and write the formula =WEEKDAY(B5,15). Here, the return type is 15.
Step 5 − Afterward, write the formula =WEEKDAY(B6,17) in the C6 cell and press the Enter tab.
Step 6 − If you wish to see the name of the day, then use the TEXT function. For instance, select the cell range C2:C6 and write the formula =TEXT(C2,"ddd") in the formula bar.
After that, press the "Ctrl+ Enter" to populate the day name of the selected range of the cells.
Download Practice Sheet
You can download and use the sample data sheet to practice the WEEKDAY function.
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