Week number based on Date - excel

I need to make week number based on given date.
Today 28-08-18
Week .....
30-07-18 1
06-08-18 2
13-08-18 3
20-08-18 4
27-08-18 5
03-09-18 6
10-09-18 7
17-09-18 8
24-09-18 9
01-10-18 10
08-10-18 11
15-10-18 12
22-10-18 13
29-10-18 14
I want the cell next to "week" to be based on today's date.

Assuming 30-07-18 is located # A1. in B1, type in :
=WEEKNUM(A1,2)-WEEKNUM($A$1,2)+1
and drag it down. Glad that you'd tried. ( :
All the best.

Start by inserting a date in any cell, that will be the first week.
Create a function that calculates the difference between its adjacent
cell and the first and divides it by 7. Voilà you've got the week number. You can round it if you want.
The formula is as follows: Floor((First date - Current date)/7).
Useful link for subtraction: http://www.theexceladdict.com/_t/t040303.htm.
Good luck,
Alex

Your base date (BD) may not be the start of the week (SOW), so the general solution could be
calculate the SOW from your base date: SOW = BD - WEEKDAY(BD)+2
calculate the distance DI from given date (GD) to SOW: DI = GD - SOW
convert distance into weeknumber W = INT(DI/7)
EDIT:
SOW = IF(WEEKDAY(BD)=1;BD-6;BD-WEEKDAY(BD)+2)
this is to cover cases where BD is a Sunday and SOW should be the Monday before (not after)

Related

how to calculate the date from the year, week-of-year and day-of-week in EXCEL?

I have the Year, Week-of-Year and Day-of-the-Week as follows:
Year = 2022 (A2) ; Week Year = 35 (B2); Week Day = 4 or Thursday (C2)
and I would like to estimate the Date as dd.mm.yyyy, which is highlighted in yellow as it shows in the EXCEL picture.
I tried many formulas, but I am sure there might be an easy one.
I think you are counting the weeks starting from zero because for 9/1/2022 (YYYY/MM/DD format) the corresponding week is 36 as per the result of function WEEKNUM(DATE(2022,9,1)). In order to use the logic to multiply the number of weeks by 7. You need to use as a reference the first day of the year, if it was a Sunday, if not then go back to the previous Sunday, so you can count the entire week. Bottom line use as a reference date, the Sunday of the first week of the year, not the first day of the year (YYYY/1/1)
Here is the approach we use in cell E2:
=LET(y, A2:A6, wk, B2:B6, wDay, C2:C6, fDay, DATE(y,1,1), seq, SEQUENCE(7),
fDay - IF(WEEKDAY(fDay)=1,0, WEEKDAY(fDay,2)) + 7*wk
+ XLOOKUP(wDay, TEXT(seq,"dddd"), seq-1))
We use the LET function to avoid repeating the same calculation. The following expression finds the previous Sunday if the first day of the year (fDay) was not a Sunday:
fDay - IF(WEEKDAY(fDay)=1,0, WEEKDAY(fDay,2))
The XLOOKUP function is used to get the numeric representation of the weekday and use the TEXT function to generate the weekdays in a long format. Since we count the entire week, if the weekday is a Sunday (column C in my screenshot), then we don't need to add any day to our reference date, that is why we use seq-1.
Here is the output for several sample data. Assuming the week count starts with zero, if not the formula needs to be adjusted as also the input data.
Notice that the year 2021 started on a Friday, so if we want to find a day for the first week (0) before Friday it will return a date from the previous year. Like in the case of Monday. If you want an error message instead, then the formula can be modified as follow:
=LET(y, A2:A6, wk, B2:B6, wDay, C2:C6, fDay, DATE(y,1,1), seq, SEQUENCE(7),
result, fDay - IF(WEEKDAY(fDay)=1,0, WEEKDAY(fDay,2)) + 7*wk
+ XLOOKUP(wDay, TEXT(seq,"dddd"), seq-1),
IF(YEAR(result) <> y, "ERROR: Date from previous year", result))
I found the solution:
Year = 2022 (A2) ; Week Year = 35 (B2); Week Day = 4 or Thursday (C2)
=DATE (A2,1,3)-WEEKDAY(DATE(A2,1,3)) + 7 * B2 + C2 - 6
I found this solution, but you need to do further testing if it really works.
I calculate month from week: =+MONTH(DATE(YEAR(A2);1;1)+B2*7-1)
I calculate week day number from week day name: =MATCH(D2;{"Monday";"Tuesday";"Wednesday";"Thursday";"Friday";"Saturday";"Sunday"};0)
And then make date using: =DATE(A2;C2;E2)

Excel - How to do the following?

I have a question related to EXCEL:
Since I have the following prices for different period, how can I compute in an automatic way, for example the price between 10 June - 15 July ?
EDIT--> Expected output:
50€+50€ (10-11 june) + 58€x13 (period 12 june - 25 June) + 75€x13 (period 26 june - 9 July) + 92€x5 (period 10 july-15july) = 2289€
This is the same pictures with the cells in excel, please do not consider the "Price of period", but only the daily price
You could do this with a (lengthy) calculation:
Consider:
A8 Contains the from date (10-06-2021)
B8 Contains the from date (17-07-2021)
=(MIN($B$8,D3)-MAX($A$8,C3)+1)*C5+(MIN($B$8,F3)-MAX($A$8,E3)+1)*E5+(MIN($B$8,H3)-MAX($A$8,G3)+1)*G5+(MIN($B$8,J3)-MAX($A$8,I3)+1)*I5
This will consider a period from 10-06 - 11-06 a period of 2 days. And also 12-06 - 25-06 a period of 14 days, and so on.
The result is: 2514.00
One method would be to create a lookup table and use a formula.
Given your data, your lookup table might as shown below:
I NAME'd it: priceTable
You can then use the formula:
=SUM(VLOOKUP(SEQUENCE(End-Start+1,,Start,1),priceTable,2))
If, for some reason, you cannot easily create priceTable, you can create it with a formula (depending on your version of Excel):
=INDEX($C$4:$I$6,{1,3},{1;3;5;7})
Note: All of the formulas assume your dates are real dates and not strings.
If your version of Excel does not have the SEQUENCE function, you can replace it with:
=SUM(VLOOKUP(ROW(INDEX($A:$A,Start):INDEX($A:$A,End)),priceTable,2))

SLA COUNT IN EXCEL FORMULA

I'm looking for an excel (Office 2016 packet) formula that count SLA for ticket resolution.
the SLA counter must consider :
1) Monday To Saturday as work day ;
2) Holiday as no working days (must be skipeed as work day);
3) SLA start for ticket generate in workdays during range-time "08:00-20:00" out of this time-range SLA count is "0" ;
4) Output should result as R1= first 24Hours ; R2= from 25 to 48 hours ; R3= from 49 to 72 hours; "Out of Sla" = since 72 hours
Data to count SLA is formatted as below for either for ticket open and closure:
Column N Column O Column P Column Q
"TICKET START DATE" "TICKET STOP DATE" "SLA" "HOLIDAY"
28/4/18 13:30 30/4/18 19:20 2 25/04/2018
28/4/18 13:11 29/4/18 13:11 1 01/05/2018
28/4/18 12:57 28/4/18 12:57 1
I solved point 1) & 2) with NETWORKDAYS.INTL formula using the first column as start_date ; the second column as end_date; 11 as third formula's field to exclude Sunday as workdays; fourth formula's value pointing a column where are listed the "holidays" date .
I could not find a solution for point 3).
It will also appreciate a possible solution for point 4) .
Thank you in advance.
Formula example of above fields :
=NETWORKDAYS.INTL(N15;O15;11;Q16:Q17)
Alessandro.
I've needed to do something similar in the past. Please see the formula below. It will give you the amount of time between working days (Monday-Friday), only taking into account times 8:30am to 5:30pm. Try inserting your specific parameters.
=IFERROR((NETWORKDAYS.INTL(H8,I8,,)-1)*("17:30"-"8:30")
+IF(NETWORKDAYS.INTL(I8,I8,,),MEDIAN(MOD(I8,1),"8:30","17:30")
,"17:30")-MEDIAN(NETWORKDAYS.INTL(H8,H8,,)*MOD(H8,1),"8:30","17:30"),"")
H8 = Start Date
I8 = End Date
8:30 = Start Time
17:30 = End Time

How to calculate workdays and compensation for given period based on Employee's monthly salary?

I have only three editable fields:
salary = 15,000
start date = 18 Jul 2014
end date = 12 Oct 2014
With these fields, I need to calculate the total salary I need to pay. Payment is on a monthly basis:
(JULY = 15,000 / 31 * 14) +
(AUG = 15,000 / 31 * 31) +
(SEPT = 15,000 / 30 * 30) +
(OCT = 15,000 / 30 * 12).
I can get total days based on both dates (ie 87 days, =DAYS($enddate,$startdate)+1) ) but I need to split the days according to the months.
What formula do I need automatically to get the amount, because each person will have different salary and different dates?
You can use Excel VBA custom Function to solve your problem:
1). First, you should populate Excel Worksheet with data structure reflecting Employees Name, Monthly Salary, StartDate and EndDate, like in the following sample:
Employee M.Salary Start Date EndDate
John $15,000.00 7/18/2014 10/12/2014
Ann $20,000.00 7/19/2014 10/13/2014
Peter $16,000.00 7/20/2014 10/14/2014
Jeff $25,000.00 7/21/2014 10/15/2014
2). The DAYS in date range can be simply found by subtraction (EndDate-StartDate), because the underlying data type in integer
3). For general solution to the problem (Calculate the compensation for any arbitrary period and monthly salary) you will need to create custom VBA formula and use it in a separate column for each Employee. Refer to this article for explanation: Create a custom worksheet function in Excel VBA
4). Pertinent to your particular case with fixed date rage, the simplified solution based on the Excel Worksheet formulas (no VBA) is described below:
Employee MoSalary Start End Days FullMo FirstMo LastMo Total
John $15,000.00 7/18/2014 10/12/2014 87 30000.00 $6,774.19 $6,000.00 $42,774.19
Ann $20,000.00 7/18/2014 10/12/2014 87 40000.00 $9,032.26 $8,000.00 $57,032.26
Peter $16,000.00 7/18/2014 10/12/2014 87 32000.00 $7,225.81 $6,400.00 $45,625.81
Jeff $25,000.00 7/18/2014 10/12/2014 87 50000.00 $11,290.32 $10,000.00 $71,290.32
4a). In column E starting with row 2 add formula for DAYS : =(D2-C2)+1 and extend it for entire range
4b). In column F starting with row 2 add formula for whole months : =2*B2 and extend it for entire range
4c). In column G starting with row 2 add formula for the first month : =14*B2/31 and extend it for entire range
4d). In column H starting with row 2 add formula for last month : =12*B2/30 and extend it for entire range
4e). In column I starting with row 2 add formula for total compensation : =SUM(F2:H2) and extend it for entire range
Hope this will help. Best regards,
I have split this out because I am not entirely sure what you require and you may be able to assemble the pieces in a way that better suits you:
Assuming your data is in A1:A3, put 1/7/14 in C1, 1/8/14 in D1, 1/9/14 in E1 and 1/10/14 in F1.
To count the number of applicable days by month, in C2 enter:
=IF(MONTH($A2)=MONTH(C1),EOMONTH(C1,0)-$A2+1,IF(MONTH($A3)=MONTH(C1),DAY($A3),EOMONTH(C1,0)-EOMONTH(C1,-1)))
To compute the salary for the month by computing the daily rate for the applicable month and multiplying that by the number of days from above, in C3 enter:
=$A1*C2/(DAYS(EOMONTH(C1,0),C1)+1)
Format C2:C3 to suit and copy across to F2:F3.

Calculating the average difference in days within a period

I am trying to calculate the average difference between two columns in excel. The columns contain a planned and an actual date, I would like to get the average difference but only for planned dates within the last three months.
Example:
Planned Start Date | Actual Start Date
21/09/2013 | 25/09/2013
10/07/2014 | 16/07/2014
01/06/2014 | 30/06/2014
The formula should only take line 2 & 3 (line 1 is older than 3 months), look at the difference in days for each applicable line (line 2: 6 days, line 3: 29 days) and then show the average ( 17.5 days) of all applicable lines.
Does anybody have a formula for this? Excel really isn't my strong suit...
Assume your data is in A2:B4 then try this array formula
=AVERAGE(IF(TODAY()-A2:A4<=90,B2:B4-A2:A4))
It assumes each month is 30 days (hence the 90)
Press CTRL + SHIFT + ENTER to enter the formula as an array formula
Based on your example I get a result of 17.5 days.

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