How can I calculate the week of the month? I understand that with the WEEKNUM function and ISOWEEKNUM function I can get the week of the year but this is not what I am looking for.
A week has only 4 weeks so the function must look at a date written in a cell and only identify a week 1-4
There is one set of criteria that I found especially difficult to add:
Week 1 for July 2019 begins on June 30th - Ends on July 27th
Week 1 for August begins on July 28th - Ends on August 24th
How can something like this added to an excel function?
This formula calculates a week in month (assuming your have a date at A1 cell)
=WEEKNUM(A1,2)–WEEKNUM(DATE(YEAR(A1),MONTH(A1),1),2)+1
Use WEEKNUM to get the week of year.
Use WEEKNUM to from the date of the first day of the month the date falls within.
Subtract the two week numbers (add 1 in case result is 0 - first week in month).
Sample:
8/21/2019
=WEEKNUM(A1,2) -> 34
WEEKNUM(DATE(YEAR(A1),MONTH(A1),1),2) -> 31
34-31 = 3 -> third week of August
Related
I have a DateTime column in Excel in which data is sorted in ascending order based on DateTime conditions from 15th June to say 1st November ;
I want to print Week Number from 1st to Nth Week based on date condition; Week criteria are like first seven days i.e 15th June to 21st June is Week1, 22nd Jun-28th Jun is Week2, 29th June - 5th June is Week3 and so on.
How Can I do this?
Column1
06/15/2021 8:00
06/15/2021 10:00
:
:
11/01/2021 20:44
11/01/2021 20:46
Let's assume your list of dates is in A2:A.
Place the following formula in cell B2 of an otherwise empty range B2:B...
=ArrayFormula(IF(A2:A="",,ROUNDDOWN((INT(A2:A)-INT(A2))/7)+1))
INT is just removing the times from date-times.
The rest is really more of a math/logic question than a formula question.
Given any date, how do I find the first month and year in the future where the 31st of that month falls on a Wednesday, in other words, for today, 11 November 2020, I would like to see (31) March 2021. [Updated: Returned month should be March 2021]
#prino,
You could make use of Excel's Iterative Calculation, setting Maximum Iterations to 1000.
In the example below, A1 is the given date and B1 receives the result (put the formula in B1):
=IF(B1=0,A1)+B1+IF(AND(WEEKDAY(B1,1)=4,DAY(B1)=31),0,1)
If you have Excel 365 then
=LET(DayInMonth, DATE(YEAR($A$2),MONTH($A$2)+SEQUENCE(336,,0,1),$B$2),
DOW, WEEKDAY(DayInMonth),
IsMatch, (DAY(DayInMonth)=$B$2)*(DOW=$C$2)*(DayInMonth>=$A$2),
XLOOKUP(1,IsMatch,DayInMonth,,0,1))
How it works:
Parameters are on the sheet (you could hard code these into the formula if you wish)
A2 is the start date (could be formula =TODAY())
B2 is the day number in the month
C2 is the day of week code (1..7 = Sunday..Saturday)
The calander repeats every 28 years. So only need to consider 12*28 = 336 months
DayInMonth is the specified date in each of the next 336 months, including this month. Note: if a month does not have the specified day (eg 31 September does'nt exist)
DOW is the day of Week code for those dates
IsMatch is 1 if calculated DayInMonth matches specified DayInMonth (this excluded non-existant dates) AND Calculated DOW matches specified DOW AND calculated date is on or after start date
XLOOKUP returns the date of the first 1 in the IsMatch array
I have the following table in Excel that has year number and week number:
Year Week
----- ------
2015 33
2014 41
2016 40
How can I get a 3rd column that has the date of the corresponding Friday for each row? So, week 33 of 2015 should return: Friday, August 14, 2015.
I have tried to use the date function, weeknum function, but cannot get any consistent results.
If you are using ISO week numbers then this formula will give the date you want
=DATE(A2,1,B2*7+2)-WEEKDAY(DATE(A2,1,3))
where year is in A2 and week number in B2
Format in required date format
With ISO week numbers week 1 always starts on the first Monday on or after 29th December
Assuming the week starts on Sunday and non-ISO week-numbering, the date of the Sunday of Week#1 of any year is given by:
=CHOOSE(WEEKDAY(DATE(A2,1,1)),DATE(A2,1,1),DATE(A2,1,1)-1,DATE(A2,1,1)-2,DATE(A2,1,1)-3,DATE(A2,1,1)-4,DATE(A2,1,1)-5,DATE(A2,1,1)-6)
Then add 5 to move to Friday. Then add:
(B2-1)*7
to advance to the proper week:
=CHOOSE(WEEKDAY(DATE(A2,1,1)),DATE(A2,1,1),DATE(A2,1,1)-1,DATE(A2,1,1)-2,DATE(A2,1,1)-3,DATE(A2,1,1)-4,DATE(A2,1,1)-5,DATE(A2,1,1)-6)+5+(B2-1)*7
I have the below formula to give me the week ending of a week num, how can I get the date of the week beginning from this?
=DATE(YEAR(TODAY()),1,1)+(7-WEEKDAY(DATE(YEAR(TODAY()),1,1))-6)+(A2*7)
when A2 is 10 for example and B2 is the date.
thanks
Are your weeks ISO weeks? If so then that formula might work for this year but it will be wrong in 2016 because it will give the end date of week 1 as 3rd Jan when it should be 10th Jan
I would use this formula for start date (a Monday)
=DATE(YEAR(TODAY()),1,A2*7-2)-WEEKDAY(DATE(YEAR(TODAY()),1,3))
then just add 6 for the end date
=DATE(YEAR(TODAY()),1,A2*7+4)-WEEKDAY(DATE(YEAR(TODAY()),1,3))
I'm looking for a formula that will let me get a weekly total of a daily totals column during partial weeks at the end month for Excel 2010. Using the US week of Monday-Friday.
I have a Day(A), Date(B), Daily Total(J) and Weekly Total(N) column for one month. I'd like to show the totals for the week (M-F) either on Fridays, or the last day of the month. For full weeks, if the Day="Fri", I can sum column J by using a 5 cell range like $J11-$J15 which would sum the daily totals from Monday thru Friday of a full week in the middle of the month.
That doesn't work for a partial week at the beginning, so I have modified versions for the first 5 days, if a Friday is detected and that seems to work. I'm open to other ideas if there's a better way to handle the first week.
--------------------------------------------------------------------
A B J (N) Week
1 Day Date Total Total Formula for Column N Week Total
2 Thu 1/1/2015 1 =IF($A2="Fri",$J2,"")
3 Fri 1/2/2015 2 3 =IF($A3="Fri",SUM($J$2:$J3),"")
4 =IF($A4="Fri",SUM($J$2:$J4),"")
5 =IF($A5="Fri",SUM($J$2:$J5),"")
6 =IF($A6="Fri",SUM($J$2:$J6),"")
--------------------------------------------------------------------
A6/N6 would be the last possible Friday for the first 5 days of the first week, so the rest of the formulas, until towards the end of the month are similar to:
N7 would be =IF($A7="Fri",SUM($J3:$J7),"")
N8 would be =IF($A8="Fri",SUM($J4:$J8),"")
It handles summing a 5 day full week, in the middle of the month, and only shows the weekly total in column N for Fridays.
I don't know how to handle the last week since it could be a partial week of between 1-4 weekdays, not ending on a Friday. I still want show a total for that last partial week, on the last weekday of the month.
I thought about checking to see if the days in the last week were either Friday or the end of the month, and came up with a check for either "Fri" or the end of the month. For example in January day 31 would be:
(N32) =IF(OR($A32="Fri",EOMONTH($B$2,0)=$B32),SUM($J28:$J32),"")
That works if and only if, the 31st is a Fri, but doesn't work if Jan 31st is a Mon-Thurs since the range to sum is fixed at 5 days ($J28:$J32) and I don't know how to make it variable, based on how many days are in that last week of the month.
I would appreciate your ideas on how to do a monthly report where it can show weekly totals for full or partial weeks. The "plan" is to have 4 empty master workbooks to use for months with 28, 29, 30 and 31 days since I don't know how to make it all purpose and not screw up borders.
Thanks!
Does your data include Saturdays or Sundays? I'm assuming not. If not then you need to check whether the date is the last workday of the month....or a Friday.....and you could just sum everything in column J up to that point and subtract the column N totals form above, i.e. in N2 copied down
=IF(B2="","",IF(OR(A2="Fri",MONTH(WORKDAY(B2,1))<>MONTH(B2)),SUM(J$2:J2)-SUM(N$1:N1),""))
I assume N1 will contain a text header