To get the last day of the week given the week number, please use the formula below and change YYYY and WK# to the values you have: =MIN (DATE (YYYY,12,31), DATE (YYYY,1,1) -WEEKDAY (DATE (YYYY,1,1), 1) + 7*WK#) The logic is to get the last day of the last full week before the week with January 1, and then to add days . 09-11-2022 14-11-2022 =MAX(DATE(A2,1,1), DATE(A2,1,1) - WEEKDAY(DATE(A2,1,1),1) + (B2-1)*7 + 1), End date: Alternatively, you could add 6 directly in the formula: =DATE(A2, 1, -2) - WEEKDAY(DATE(A2, 1, 3)) + B2 * 7 + 6. Please remember that the above formula works based on the ISO week date system, where the week starts on Monday and the week containing the 1st Thursday of the year is considered week 1. Technical details Change the date format Calculate a date based on another date Convert text strings and numbers into dates Increase or decrease a date by a certain number of days See Also Add or subtract dates Let's say you have a long list of dates in some column and you want to highlight only those that relate to a given week. So, to convert a date to be the Saturday of the week the date falls in, use this formula (the "+7" just keeps the converted value from being the Saturday of the previous week): =$A3-WEEKDAY ($A3)+7 It's the same idea if you wanted to use the first day of the week, with the week defined as starting on Sunday: =$A3-WEEKDAY ($A3)+1 Or, you can make a separate table that maps a number to each weekday and use VLOOKUP to populate the values. Curse you, Gregorian calendar!!! TIA. Connect and share knowledge within a single location that is structured and easy to search. I am not sure I can figure out a formula that would be 100% true. if you apply =TEXT(A2, ddd) to the sample dataset, it will return Sat. Keep double quotes around your date. I use Excel 2010 so I had to convert all the ; and also it's a Danish version So I had to change the Max to Maks, Date to Dato, and weekday to Ugedag. Input = 15/06/2022 then it should give the output as WW25.3. So if the week starts with 1 on Sunday for example, its just that day in week 1? Please try the following formula: Here the month number is calculated from the last day of the week. Use Format Cells Option to Convert Date to Day of Week in Excel 1.1 Change Format from Context Menu 1.2 Change Format from Ribbon 1.3 Change Format with a Keyboard Shortcut 2. 02-11-2022 07-11-2022 If there is, please describe. by Svetlana Cheusheva, updated on March 22, 2023. Example: into "2018W44" Or "1844" Feel free to comment if something seems difficult to understand. If Return_type is out of the range specified in the table above, a #NUM! Could anyone please advise formula (s) to do this. to try to calculate the start and end date for each week, but I'm seeing obviously wrong dates being calculated at the end/beginning of each year -- the week start/end dates are wrong for 1/1/2021 through 1/3/2021. To do this, we use the DATE() function with an IF() statement for the day value: =DATE(YEAR($A3),MONTH($A3),IF(DAY($A3)<15,1,15)), We know the year is the YEAR() of the date being converted, and we know the month is the MONTH() of the date being converted. What does WC mean? How to Convert a Date to a Custom Fiscal Week [SOLVED] See the syntax for this function in more detail and choose the system that works best for you. I need to a formula to calculate the date of the beginning of the week starting Monday. How can I convert my work week number to date or vice versa. A date within the week. Dates should be entered by using the DATE function, or as results of other formulas or functions. I have data set with First date as 6-Sept-2018. Slightly shorter: = YEAR (A1)+IF (MONTH (A1)=12;ISOWEEKNUM (A1)=1;- (ISOWEEKNUM (A1)>=52)). 1/6/2021 2021 1 1/4/2021 1/10/2021 Mar 23, 2022 at 8:27. The first method involves a function (TEXT), the second method involves a commonly used Excel dialog box (Format Cells) and the third method involves an Excel formula (with WEEKDAY and CHOOSE functions). Make sense (its confusinguntil its not)? It only takes a minute to sign up. This should display the day of the week in short form, corresponding to the date in A2. Depending on what your needs are, one approach or the other will make more sense. This could be useful when working with to-do lists, daily/weekly summary reports, etc. 07-11-2022 14-11-2022 Input = Year+Month+Week(1 to 6) Date and time functions (reference) - Microsoft Support By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Thank you so much, That's perfectly working. - James McLeod. Hafigured it out right after posting this comment. That would be correct week number is the first week wasn't considered as week #1. So, we will have to construct our own formulas. I need help on one logic to create one function for the date. It doesn't seem to have been answered yet. By default, the WEEKNUM function starts counting on the week that contains January 1 and increments week numbers on Sunday. In Microsoft Excel, you can extract a day of week from a date by using the WEEKDAY function. Is it possible to achieve it? It is like having an expert at my shoulder helping me, Your software really helps make my job easier. The serial_num argument must have a . 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. Converting a Date in Excel to Week, Bi-Week, Month, and More Is it possible to use this function but have the week numbers start 1st July in the year? =DATE(A2,1,1)- WEEKDAY(DATE(A2,1,1),1) + B2*7. Muchas gracias. : How to Convert Date to Week Number of Month in Excel (5 Ways), 5 Ways to Convert Date to Week Number of Month in Excel, 1. Date Year Wk Nm Wk Start Date Wk End Date Please note that the formula returns the date as a serial number, and to have it displayed as a date, you need to format the cell accordingly. The example I started this post with is converting each day to be the day that ends the week or the day that starts the week. AbleBits suite has really helped me when I was in a crunch! Let's say your days are in Column B and data starts in row 2 (since row1 is headers). Excel: how to convert a table with daily dates to weeks Means week is calculated from Monday to Sunday. 1st April'20 to 5 April - week1 Most often you would use it in combination with other functions to perform various calculations based on the week number, as demonstrated in further examples. First, make the pivot table with the dates in the rows. As you have just seen, it's no big deal to turn a date into a week number using the Excel WEEKNUM function. Why? Right-click on the column and form the popup menu that appears, press. Why did US v. Assange skip the court of appeal? 13-11-2022 14-11-2022 =A1-WEEKDAY(A1,3)+6, If i enter 1) Lead time - 4 weeks & 2) Item in store (10th oct 2016), then PO to be make field ( will have autom. Hi, week in 2012.01.01-2012.01.8? But, if youve got one that is stumping you, leave a comment here and Ill take a crack at it! This is an amazing post. See screenshot: Notes: appreciated. Here, in the DAY function, we selected Cell B5 as serial_number. =DATE (B5,1,-2) - WEEKDAY (DATE (B5,1,3)) Now, you can easily find the last date of the week by using the following formula: =E5+6 Similarly, you could use the previous formula and add six with that to get the end of the week. If row 2 is the topmost row with data, then of course it should be A2 and B2: =DATE(A2,1,1) - WEEKDAY(DATE(A2,1,1),1) + (B2)*7 + 1. 1/9/2021 2021 1 1/4/2021 1/10/2021 70+ professional tools for Microsoft Excel. eg If someone has surgery on 19/8/2020 and it always based on 'todays date' what is the week number. 10-11-2022 14-11-2022 You just have to either think about it really hardor experiment until its doing what you want. I often find myself getting data out of one system or another (or multiple systems, and then combining them) as daily data a series of metrics by day for a sequence of days. 12/25/2020 2020 52 12/21/2020 12/27/2020 Here it converts the date to the text format M/D/YYYY, and you can change the format as you need. By adding this column, I can create a pivot table that can easily generate weekly data for whatever metrics are in the spreadsheet. Hi! We cant hard code the day value because that day could be 28, 29 (leap year), 30, or 31. This function is, basically, a remainder function, and its main use is to calculate the remainder when one number is divided by another (for instance, =MOD(14,4) returns 2 because, when you divide 14 by 4, you get a remainder of 2). It seems like the formula needs to be changed according to the year. Days Required. Hello! Ive just scratched the surface with possible date conversions in this post. =WEEKNUM ("3/15/2017") Result: 11 If you work based on a date system where the week containing the 1st of January is considered week 1, use the following formulas: =DATE(A2,1,1) - WEEKDAY(DATE(A2,1,1),2) + (B2-1)*7 + 1, =DATE(A2,1,1)- WEEKDAY(DATE(A2,1,1),2) + B2*7. Now that you know how to convert a date to a week number in Excel, let's see how you can use week numbers in other calculations. Here, we will extract the day from the given date and the first day of the month the date falls within. 1 to 4 March 2021 should be the first week and 6 to 11 March 2021 should be the second week. These formulas are similar to the above ones with the only difference that they are written for Sunday - Saturday week. Since the formula still refers to the Sunday of the first day of this week (January 5th), It returns as week number 2. If you need to, you can adjust the column widths to see all the data. Exceldemy. I had to change all the , commas to ; semicolon for it work in Excel 2010, Is there a way to use =WEEKNUM(TODAY()), but have it display in the cell with additional text before and after, i want the text to stay the same, but i want the Week Number to auto update each time someone opens the spreadsheet. This system is the methodology specified in ISO 8601, which is commonly known as the European week numbering system. Meaning that for example Feb 2023, 1/2/2023 is Wednesday, and this is the first week. Google Chrome is a trademark of Google LLC. ISOWEEKNUM takes just one argument, date, which must be a valid Excel date. A number that determines on which day the week begins. The Format Cells feature provides a great way to directly convert your dates to days of the week while replacing the existing dates. I have a question. There are a lot of them in the article. of January) in it. 565), Improving the copy in the close modal and post notices - 2023 edition, New blog post from our CEO Prashanth: Community is the future of AI, MSFT Excel pivot table links to external data, Dates not recognized as dates in pivot table pulling directly from SQL Server, How to change Excel Pivot table "Report Filter"s values cell formatting, Want to use dates as headers in a table but need two instances of the same date, Excel pivot table field grouping problems (numbers seen as text), Excel: How to Group Dates Per Week in Line Graph, Excel collapsing pivot table - or group weeks & months. Method 1: Converting Date to Day of Week in Excel using the TEXT Function The TEXT function is a great function to convert dates to different text formats. Hope you find this article helpful and informative. Here are some basic building blocks for the format codes that you can use: You can use the following basic format codes to represent day values: Let us see how we can apply the TEXT function to our sample dataset to convert all the dates to days of the week. This formula actually makes the value the weekday. Well, Excel dates are, under the hood, just numbers. And here is the result returned by the formula: 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. 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). For example, instead of the date, you may want to know whether its a Monday or a Tuesday or any other day. 30-10-2022 30-10-2022 How to Compare Two Columns in Excel (using VLOOKUP & IF), Multiple If Statements in Excel (Nested Ifs, AND/OR) with Examples, How to Center the Worksheet Horizontally on the Page in Excel, How to Merge First and Last Name in Excel, How to Remove Commas in Excel (from Numbers or Text String), Why does Excel Open on Startup (and How to Stop it), How to Unsort in Excel (Revert Back to Original Data), d one or two-digit representation of the day (eg: 3 or 30), dd two-digit representation of the day (eg: 03 or 30), ddd the day of the week in abbreviated form (eg: Sun, Mon), dddd full name of the day of the week (eg: Sunday, Monday). Thank you. error is returned. Excel: How to Convert Date to Day of Week - Statology In the example shown, the formula in D5 . Analytics Demystified are recognized across the globe for our expertise and commitment to the digital analytics community. Syntax WEEKNUM (serial_number, [return_type]) The WEEKNUM function syntax has the following arguments: Serial_number Required. A drop-down menu will appear.