# Weekday: Excel Formulae Explained

by Jacky Chou
Updated on

## Key Takeaway:

• The WEEKDAY Excel formula is a powerful tool for determining the weekday of a specific date. This can be useful for scheduling, project management, and other tasks that require working with dates and times.
• The syntax of the WEEKDAY formula is straightforward, making it easy to use for beginners and experts alike. By assigning custom names for weekdays, users can make their spreadsheets more user-friendly and easier to understand.
• The WEEKDAY formula can also be used in conditional formatting, allowing users to highlight dates based on their weekday or other criteria. This can be useful for visualizing data and identifying patterns.
• Examples of using the WEEKDAY formula include calculating the number of weekdays between two dates, highlighting weekends in a schedule, and sorting data by weekday. These examples demonstrate the versatility and usefulness of the WEEKDAY formula.
• The advantages of using the WEEKDAY formula include saving time and effort in manual calculations, improving accuracy and consistency, and enhancing the usability of spreadsheets. By mastering the WEEKDAY formula, users can become more efficient and productive in their work.
• Limitations and common errors in using the WEEKDAY formula include issues with leap years, different start dates for different countries, and incorrect formatting of dates. By being aware of these limitations and errors, users can avoid potential problems and ensure the accuracy of their calculations.
• In conclusion, the WEEKDAY Excel formula is a valuable tool for anyone working with dates and times in spreadsheets. By understanding its syntax, importance, and usage, users can take advantage of its many benefits and avoid common errors.

Are you struggling to understand and use Excel formulas? Don’t worry, we’ve got you covered! In this blog, you’ll learn all the ins and outs of Excel formulas so you can become an Excel pro in no time.

## Syntax of WEEKDAY Excel Formula

WEEKDAY Excel Formula syntax refers to the expression that developers use to get the day number as per the week’s start day.

The formula comprises two variables, the date and the return type. WEEKDAY’s function can be nested into other Excel functions, such as IF statements, to create more complicated algorithms. The syntax of the WEEKDAY Excel formula can assist in developing powerful applications with consolidated figures that can be processed more quickly and efficiently.

When using WEEKDAY, the first argument is the date, which can come in many different formats. The second argument defines the weekday mode, with 1 as Sunday and 2 as Monday. Ascending order is used for the other days of the week. It specifies the numeric value of the DAY() function’s return as well as the calendar day’s corresponding numerical value. WEEKDAY performance on the user’s device can be improved by adjusting its format. WEEKDAY Excel Formula can handle both numerical inputs and cell references, and the modified data is frequently simpler to read and process.

To get the ordinal number of the weekday with WEEKDAY, use a single formula rather than manual calculations or VBA macros.

WEEKDAY can be used to create dynamic presentations and reduce errors because the function’s result changes when the date, or week start day changes. WEEKDAY formulae have been incorporated into versions of Excel since its early releases to enable for highly efficient and reliable information processing capabilities. Although the WEEKDAY is a relatively new Excel function, it has proven to be a valuable tool to many developers and is widely used to manipulate date and time data in Excel.

## Importance and Usage of WEEKDAY Excel Formula

The relevance and application of the WEEKDAY Excel Formula are of great significance in numerous areas. It enables the user to determine the day of the week for any given date, which is highly useful for scheduling purposes and analyzing trends. Additionally, this formula has several variations that allow the determination of different day and date formats with great accuracy.

Considering the usage of the WEEKDAY Excel Formula, it is a highly effective tool for organizing data and identifying trends based on days of the week. This formula is especially useful in financial analysis, where it can provide crucial insights into the performance of financial assets on particular weekdays.

Moreover, the WEEKDAY Excel Formula has vast opportunities for customization. One such variation is the ability to adjust the formula to detect weekends differently, allowing for greater flexibility in determining schedules and addressing calendar-related issues.

To optimize the use of the WEEKDAY Excel Formula, it is recommended to pair it with the WEEKNUM formula to permit easy detection of patterns across multiple weeks. This combination can provide a comprehensive overview of data trends and facilitate better planning and organization.

## Examples of WEEKDAY Excel Formula

Examples of WEEKDAY Excel Formula:

• WEEKDAY function returns the day of the week as a number from 1 to 7, where 1 represents Sunday, 2 represents Monday, and so on.
• Using WEEKDAY with the second parameter set to 2, the function returns 1 for Monday, 2 for Tuesday, and so on.
• WEEKDAY with the third parameter set to 3, the function returns values from 0 to 6, where 0 represents Monday, and so on.
• When using WEEKDAY with a date range, the function returns an array that contains all the weekday values for that range.
• To determine if a specific date falls on a weekend or weekday, use the WEEKDAY function combined with an IF formula.

Apart from these, it is essential to note that WEEKDAY can also work with other Excel functions, such as IF, SUMIFS, and COUNTIFS, to achieve specific goals and calculations.

Consider a real-world scenario where you need to create a project timeline using Excel sheets. You can use WEEKDAY to identify weekends and weekdays in the dates listed in the gantt chart.

Overall, WEEKDAY is a powerful tool that can help you streamline your calculations and make your work more efficient. Try experimenting with its various parameters and see how it can fit into your workflow to make tasks more manageable and easier to execute.

## Advantages of using WEEKDAY Excel Formula

Using WEEKDAY Excel Formula allows you to efficiently analyze and process data by assigning numerical values to weekdays. This enables users to sort, filter, and calculate dates more accurately and quickly. Its use in Excel offers several advantages:

• Facilitates organizing and summarizing data.
• Enables users to identify weekends and weekdays quickly.
• Allows users to easily perform calculations on weekdays alone.
• Helps in analyzing business trends by identifying which weekdays had the most sales or activities.
• Reduces manual effort and saves time.

It is important to note that understanding how to use the formula correctly is crucial to achieve accurate results. With WEEKDAY Excel Formula, you can significantly enhance your data analysis and save valuable time.

In addition to its benefits, using WEEKDAY Excel Formula requires knowledge of its syntax and application. Incorrect usage can lead to errors in data analysis results. Familiarizing yourself with this Excel formula is essential for any data analyst or business professional looking to streamline their data processing.

To stay ahead of the competition, it is important to learn how to use WEEKDAY Excel Formula to enhance your data analysis and stay up to date with the latest tools and techniques. Don’t miss out on this opportunity to improve your Excel skills and advance your career.

## Limitations and Common Errors in using WEEKDAY Excel Formula

The drawbacks and common pitfalls of utilizing the WEEKDAY Excel formula can hinder its effectiveness. These limitations include inaccuracies in calculations, difficulty in adjusting to different date formats, and the formula’s inability to differentiate between weekday and weekend in some cases. Other errors can arise from not inputting the correct syntax, missing parentheses, or incorrect cell references. To avoid these common errors, it’s essential to double-check the formula inputs and ensure they match the desired output. Additionally, using the WEEKNUM Excel formula can help provide more flexibility when calculating dates. An insightful fact is that replacing the WEEKDAY formula with WEEKNUM can improve the precision of date calculations, as it offers better control over how dates are categorized. (Source: Exceljet)

## Five Facts About WEEKDAY: Excel Formulae Explained:

• ✅ The WEEKDAY function in Excel returns a number that represents the day of the week. (Source: Excel Easy)
• ✅ The function can be used to calculate dates for recurring events, such as the first Monday of the month. (Source: Microsoft Support)
• ✅ The formula takes two arguments – the date and the type of day numbering system to use. (Source: Ablebits)
• ✅ The weekday numbering system can be adjusted to start on any day of the week using the optional second argument. (Source: Trump Excel)
• ✅ WEEKDAY can be combined with other functions, such as COUNTIF, to perform more complex calculations in Excel. (Source: Excel Campus)

## FAQs about Weekday: Excel Formulae Explained

### What is WEEKDAY and how can I use it in Excel?

WEEKDAY is an Excel function that returns the day of the week for a given date. You can use it to calculate the day of the week for a date, or to perform operations based on the day of the week.

### What are some examples of how I can use the WEEKDAY formula in Excel?

You can use the WEEKDAY formula to calculate the day of the week for any given date, to perform calculations based on the day of the week (such as counting the number of weekdays in a range), or to generate a list of dates for a particular day of the week (such as all Mondays in a given month).

### How do I use the WEEKDAY formula in Excel?

To use the WEEKDAY formula in Excel, you need to specify the date for which you want to calculate the day of the week. The formula syntax is “=WEEKDAY(date, [return_type])”, where “date” is the cell or value for which you want to calculate the day of the week, and “return_type” is an optional argument that specifies the way in which the result should be returned.

### What are the different return types for the WEEKDAY formula in Excel?

There are three different return types for the WEEKDAY formula in Excel:
– 1 (default): returns 1 for Sunday, 2 for Monday, 3 for Tuesday, and so on.
– 2: returns 1 for Monday, 2 for Tuesday, 3 for Wednesday, and so on.
– 3: returns 0 for Sunday, 1 for Monday, 2 for Tuesday, and so on.

### Can I use WEEKDAY in combination with other formulas in Excel?

Yes, you can use the WEEKDAY formula in combination with other formulas in Excel. For example, you could use it to count the number of weekdays in a range by using it in combination with the SUMIF formula to count cells that meet a certain condition (such as being a weekday).

### Are there any limitations to using the WEEKDAY formula in Excel?

One limitation of the WEEKDAY formula in Excel is that it only works with dates in the Gregorian calendar (which is the calendar used in most of the world today). If you need to work with dates in other calendars (such as the Julian calendar), you may need to use a different formula or conversion factor.

Auther name

Jacky Chou is an electrical engineer turned marketer. He is the founder of IndexsyFar & AwayLaurel & Wolf, a couple of FBA businesses, and about 40 affiliate sites. He is a proud native of Vancouver, BC, who has been featured on Entrepreneur.comForbesOberlo, and GoDaddy.