Excel WeekNum and ISOWeekNum Functions

The WEEKNUM function takes a date and returns a number between 1 and 54 that corresponds to the week of the year.

The WEEKNUM function is used in Excel to return the week number of a specific date in the year (a number between 1 and 54).

The Excel WEEKNUM function calculates the week number of a date within the year, aiding in weekly planning and analysis.

WEEKNUM or Week Number in Excel is a Date & Time function that gives us the week number for the given date.

How to calculate ISO week numbers, convert week numbers to dates, and get the number of weeks in a year, in Microsoft Office/Excel.

Description · WeekNum uses the week containing January 1 as the first week of the year. The result from this function can range from 1 to 54.

The WEEKNUM function will return the week number of a specific date as per the calendar year. The function will return an integer that represents a week number.

Returns the week number of a specific date. For example, the week containing January 1 is the first week of the year, and is numbered week 1.

How to use WEEKNUM in Excel quick guide. Enter a date in any cell to find the corresponding calendar week. Type =ISOWEEKNUM(B1) in another cell.

本文將說明公式語法及WEEKNUM 函數的使用方式中的Microsoft Excel。 描述. 傳回特定日期的週數。 例如，包含1 月1 日的該週是該年的第一週，因此會編號為第1 週。