To get the ISO week number (1-53) for a date in cell A1, use =ISOWEEKNUM(A1). You can find the detailed instructions in Of course, the formula to convert a week number to a date is not trivial, and it may take a while to get your head round the logic. But what if you are looking for the opposite, i.e. Explain - "formula like this" - what formula are you talking about?

If you need to get the day name (i.e. You'd probably better ask on the following Australian forum targeting Excel:=IF(AND(MONTH(L2)=7,DAY(L2)=1),1,IF(WEEKDAY(L2,1)=1,M1+1,M1))One of the formulas above didn't work for me on dates in 2016.I was seeking a formulas that would tell me for today's date (or any date) what is the first day of the week, base on a Sunday - Saturday week.=((DATE(YEAR(TODAY()), 1, -3) - WEEKDAY(DATE(YEAR(TODAY()), 1, 2)) + WEEKNUM(TODAY()) * 7)-1)If you want to start your week on a Monday then remove that -1 at the end of the formula.how to display the current week (like week1, week2, week3 and so on) for a day in a month?bring the week number to a cell using formula A1=WEEKNUM(date) and concatenate that with the text "Week"(=CONCATENATE("Week",A1))It seems like the formula needs to be changed according to the year. If the week number is 2, for example, you need to use the very first day to add 7 days which is (2-1)*7, or if you know the week number is 3, you need to use the very first day to add (3-1)*7 days to have the first day of the 3rd week. If you only want to display a day name, you don't need a formula – you can use a...If you need to extract the month from a date, you can use the MONTH function. When posting a question, please be very clear and concise. The WEEKDAY function will get a day number of the week form a date. Weekday function | Networkdays function | Workday function.

ISO week number. How to return a day name of the week from a date that is contained in a cell in Microsoft Excel. Do you just want to display the day name? Supposing I have a random year and week number which are 2015 and 15 in a worksheet as following screenshot shown, and now I want to find out the specific dates from Monday to Sunday by this given week number. See the With ISO week numbers, week 1 starts on the Monday of the first week in a year with a Thursday. Enter the following TEXT formula in the Cell C1 that you want to get the day name of the week, and then press ENTER:If you want to get the full day name of the week, such as: Monday, Tuesday, etc. You'll also learn how to troubleshoot, trace errors, and fix problems. I can't thank you enough sir!! No, it's really not because I have NO IDEA how to do this!!! My defined name plannedDate refers to a cell range containing only date formatted cells. Learn how to get the day of the week of a date in Excel and how to get the number of weekdays or workdays days between two dates.

If you'd rather begin with some other day of the week, say … from a date, there are several options depending on your needs. I want to highlight dates using conditional formatting based on numbers of weeks i.e. However, with a few tricks it is often possible to make week numbers calculations, even if the application does not have native support for week numbers.These pages explain how to use week numbers in various popular software applications and programming languages.Our partners will collect data and use cookies for ad personalization and measurement. The Excel ISOWEEKNUM function takes a date and returns a week number (1-54) that follows ISO standards, where weeks begin on Monday and week number 1 is assigned to the first week in a year that contains a Thursday.Formulas are the key to getting things done in Excel. It is supposed to return a value of (week) 14 but all the calculations I have tried keep returning a value of (week) 15.

Instant access. To tell WEEKNUM to use Saturday as the first day of the week, use a formula like: =WEEKNUM(I89,16) The ‘magic number’ 16 indicates that Saturday should be the start of the week, but you can see a list of all of the week start options in Excel’s help files. Consequently, the first Monday is always between December 29 and January 4. We thank you for understanding!This comprehensive set of time-saving tools covers over 300 use cases to help you accomplish any task impeccably without errors or delays.8 essential tools to streamline your email workflowBest add-ins for Microsoft Outlook in one collection to reveal the full power of your inbox and improve your emailing routine:Do not waste your time on typing the same replies to repetitive emails. The Excel WEEKDAY function takes a date and returns a number between 1-7 representing the day of week. In the generic form of the formula above, the date must be in a form that Excel recognizes as a valid date.

I understand that it may be confusing and this approach may not work well for your date system.