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Formula Generator - WEEKNUM function

The WEEKNUM function returns a number representing the week of the year where the provided date falls. The optional 'type' argument allows you to specify the system used to determine the first week of the year. By default, the 'type' argument is set to 1, which means the week containing January 1st is considered as the first week of the year.
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How to generate an WEEKNUM formula using AI.

To get the WEEKNUM formula for your data, you can ask the AI chatbot the following question: "What is the Excel formula to calculate the week number for a given date?"

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Step 1: Describe Your Formula
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Step 2: Copy Syntax

WEEKNUM formula syntax.

The WEEKNUM function in Excel is used to determine the week number of a specific date. It follows the syntax: WEEKNUM(serial_number, [return_type]) The "serial_number" is the date you want to find the week number for. It can be entered as a date, a reference to a cell containing a date, or a formula that returns a date. The "return_type" is an optional argument that specifies the type of week numbering system to use. It can be entered as 1, 2, 3, or 21. If omitted, the default return_type is 1, which uses the U.S. system where weeks start on Sunday. Here are the different return_type options: 1: Weeks start on Sunday and week 1 includes January 1st. 2: Weeks start on Monday and week 1 includes January 1st. 3: Weeks start on Monday and week 1 is the first week that has at least 4 days in the year. 21: Weeks start on Monday and week 1 includes the first Thursday of the year. Remember to format the cell with the WEEKNUM function as a number to display the week number correctly.

Use Cases & Examples In these use cases, we use the WEEKNUM function to determine the week number of a given date. The WEEKNUM function helps us organize and analyze data based on weekly time periods.
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Provide Clear Context When describing your requirements to the AI, provide clear and concise context about the data you have, the specific task you want to accomplish, and any relevant constraints or conditions. This helps the AI understand the problem accurately.
Include Key Details Include important details such as column names, data ranges, and specific criteria that need to be considered in the formula. The more precise and specific you are, the better the AI can generate an appropriate formula.
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