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ISOWEEKNUM

The ISOWEEKNUM function in Google Sheets is a useful tool to determine the number of the ISO week in which a given date falls. Whether you're organizing data by weeks, scheduling tasks, or analyzing project timelines, the ISOWEEKNUM function simplifies the process. Explore our comprehensive guide to learn how to effectively utilize this function.

Function Syntax and Parameters

Syntax: ISOWEEKNUM(date)

Parameters:

  • date: The date for which you want to determine the ISO week number.

Step-by-Step Tutorial

  1. Using ISOWEEKNUM with a specific date:

    • Example: =ISOWEEKNUM("2022-05-01")
    • Result: 18

  2. Using ISOWEEKNUM with a cell reference:

    • Example: If cell A1 contains the date 2022-06-15, then =ISOWEEKNUM(A1) will return 24.

Use Cases and Scenarios

  1. Project Management: Assign tasks based on ISO week numbers.
  2. Time Tracking: Analyze productivity by ISO week.
  3. Sales Forecasting: Calculate weekly sales figures using ISO week numbers.

Related Functions

  • WEEKNUM: Returns the week number for a specified date.
  • YEAR: Extracts the year from a given date.

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