Google Sheets: Calculate Week with Ease

Mastering Google Sheets calendar functions can help streamline your productivity and organization. One such function is calculating or determining a specific day's week within this sphere. Google Sheets doesn't have a built-in function for this, but we can craft a custom function using the DAYOFWEEK formula to achieve this. Let's dive into the process of creating a function to determine the day of the week in Google Sheets.

First, it's crucial to understand that the DAYOFWEEK function in Google Sheets returns a number between 1 (Sunday) and 7 (Saturday). We'll utilize this to create our custom function to convert this number into an actual day's name.

Main Function Construction

The key to this process is creating a function (let's name it 'GetWeekDay') that can return the day of the week based on a given date. The DAYOFWEEK function will play a pivotal role in this methodology.

Now, let's proceed to create this custom function by using Google Sheets' built-in DAYOFWEEK function and converting its output into readable day names. A premature step is needed here—defining an array for the day names. This array should include all the possible weekdays.

Defining The Day Names Array

Beşiktaş Here's how you can define an array of weekdays: `{"Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"}`. Ensure to enclose the entire definition within double-quotes and separate each day by a comma.

To set this array as a constant, you can utilize the Ctrl + Enter shortcut after entering the array in a cell. This step is crucial as the array won't change, allowing us to call it within our main function.

Creating 'GetWeekDay' Function

Once you've set the constant array, you can proceed to create the main function 'GetWeekDay'. This function will take one argument, which should be a date. It will then utilize the DAYOFWEEK function to get the corresponding number for that date. After obtaining the number, it will extract the corresponding day name from the previously defined array.

Here's a simple breakdown of the 'GetWeekDay' function:

1. Index the date array using DAYOFWEEK function for the date argument.
2. Return the extracted day name.

After crafting and saving the function, use it by typing `=GetWeekDay(your_date)`, replacing 'your_date' with your desired date.

Applying The Function Across A Data Set

Let's imagine you have a data set containing dates. You can apply this function to an entire column in a couple of steps:

1. Input the function in the first cell where you need the results. 2. Drag this cell's fill handle (small square in the bottom right corner) across the entire column to apply the function to all the dates in your data set.

Troubleshooting

Although it's generally seamless, you might face issues while applying the function to a data set. The main culprit is likely the dates cells being formatted exclusively as text or calculated fields.

To rectify this, select all the date cells, right-click, then format > Format > Number. Subsequently, choose 'Custom Date and Time' and then change the 'Format as Fraction' and 'Date Style' options to your preferred settings. Lastly, click 'Clear style' to apply the changes.

Finally, having the 'GetWeekDay' function at your disposal makes working with dates in Google Sheets more manageable and efficient. Not only does it save time, but it also stays precise, making it an invaluable aspect of productivity.

Remember, the key to Google Sheets' power lies in its flexibility and customizability. With the 'GetWeekDay' function, you're unlocking a new layer of convenience and utility, making your spreadsheets more accurate and user-friendly.