What if statements with dates - excel

I would like the following
If q14 is between 1/7/18 and 31/7/18, T14, 0
Q14 =15/2/19
T14 4320
I would expect the answer to be 0
Any ideas how I correctly put this into a formula?
Thanks

Break it down slightly:
If Q14 >= 2018-07-01 And Q14 <= 2018-07-31 Then T14, Otherwise 0
To make a Date show as a date instead of text, you want to use the DATE function, which accepts the Year, Month and Day like so: DATE(2017, 7, 1)
The way that "And" is handled in Excel is slightly unusual: You have an AND function, and you pass all of your conditions as arguments:
AND(Q14>=DATE(2017, 7, 1), Q14<=DATE(2017,7,31))
Then you can add this to a normal IF function:
=IF(AND(Q14>=DATE(2017, 7, 1), Q14<=DATE(2017,7,31)), T14, 0)
(Extra note: Since a day runs from 00:00:00 to 23:59:59, you usually want to check if you are before the next day instead of on the current day, which would be Q14<DATE(2017, 8, 1))

You can just test if between using and
so if Q14 is Greater than (using the date formula) 1st July 2018 and Q14 is less than 31st July 2018.
If true return cell T14 else 0
=IF(Q14>=DATE(2018,7,1)&Q14<=DATE(2018,7,31),T14,0)

Related

How to get the Week of the month (1:6)

We can find different approaches to determining the week of the month, and even though there are many pages on 1:4 and/or 1:5, there is very few around 1:6 approach.
So to give you a bit of the context, I am working with a pivot table in Excel which gets its values from a Power Query source.
In Power Query, there is a function Date.WeekOfMonth which takes in the date and returns a number between 1 and 6.
In this definition, weeks start from Sunday and ends on Saturday.
So, for example, the first two days of October 2021 -i.e. Fri & Sat- fall in the 1st week of Oct, while the 3rd day of Oct 2021 starts the second week, and then the last day of October 2021,i.e. Oct 31, is the only day in the 6th week.
I had an automation task on hand in which I needed to pull data from the Power Query-generated pivot, so I had to implement a piece of code in VBA which calcs weeks the same.
Unfortunately, I couldn't find any prepared snippet, so after implementing I though it might worth sharing.
(Any comments and suggestions appreciated)
The DatePart function is perfect for this. Using DatePart with the interval set to "weeks" you can find the week of a given date. Then you subtract the number of weeks before the first day of that month (which sets the first day to week = 1).
Function WeekNumOfDate(D As Date) As Integer
WeekNumOfDate = DatePart("ww", D) - DatePart("ww", DateSerial(Year(D), Month(D), 1)) + 1
End Function
Here is a second version of the function that has the ability to set the FirstDayOfWeek argument:
Function WeekNumOfDate(D As Date, Optional FirstDayOfWeek As VbDayOfWeek = vbSunday) As Integer
WeekNumOfDate = DatePart("ww", D, FirstDayOfWeek) - DatePart("ww", DateSerial(Year(D), Month(D), 1), FirstDayOfWeek) + 1
End Function
As an example for using FirstDayOfWeek: With FirstDayOfWeek set to vbThursday, the date "Nov 5th, 2021" will return as Week 2, whereas it would by default be counted as Week 1. November 1st to 3rd of 2021 will be week 1, and then 4th to 10th will be week 2.
Its implementation in VBA is:
Function WeekOfMonth(My_Date As Date)
If Day(My_Date) > Day(My_Date - 1) And Weekday(My_Date) > Weekday(My_Date - 1) Then
WeekOfMonth = WeekOfMonth(My_Date - 1)
ElseIf Day(My_Date) > Day(My_Date - 1) And Weekday(My_Date) < Weekday(My_Date - 1) Then
WeekOfMonth = WeekOfMonth(My_Date - 1) + 1
Else
WeekOfMonth = 1
End If
End Function
Note that even though the above function is recursive, its time and space complexity is an expression of order N, which here cannot exceed 31.

Select records with at one day in centain year

I want to make a selection of records where date range (start date - end date) includes at least 1 day of 2020. So for example: if a record has 2018-01-13 as the start date and 2020-01-09 as end date, it has to be included in my selection, as there is at least one day active in 2020.
Sample data:
How can I achieve this?
Just check the years with the standard between notation
Start Year <= 2020 <= End Year
=AND(YEAR(A1)<=2020,YEAR(B1)>=2020)
=IF(OR(YEAR(A2)=2020,YEAR(B2)=2020),1,0)
Excel store dates as numbers, so, you must compare them like numbers
Make a column with: =IF(OR(B2 < $C$2; $D$2 < A2); 0; 1)
where
A: start date
B: final date
C: 2020-01-01
D: 2020-12-31
, Now you can use only values 1

Google Sheets or Excel Function to return date based on value

I have this table in Google Sheets (or excel). The year is the two last digit of my code.
Code Duration Months
1 AC-26482-17 60
2 AC-26482-18 30
3
I would like to return the date in this format (If no data, just leave blanks).
Code Duration Months Start Expiration
1 AC-26482-17 60 01/01/2017 01/01/2022
2 AC-26482-18 30 01/01/2018 01/07/2020
3
Is there a way to achieve this?
You mean you want to add the duration in months to the start date? If so, your sample has the wrong expiration date. 30 months added to 1/1/2018 is not June 1st, but July 1st.
The formula in Excel is
=EDATE(C2,B2)
If you also want to calculate the start date from the last two characters of the code, given all dates are in this millennium, then you can use this for the start date:
=DATE(RIGHT(A2,2)+2000,1,1)
edit: To handle blank cells, you can check with IsBlank()
=if(isblank(a2),"",DATE(RIGHT(A2,2)+2000,1,1))
use:
=ARRAYFORMULA(IF(A2:A="",,DATE(IF(RIGHT(A2:A, 2)*1>=40,,20)&RIGHT(A2:A, 2), 1, 1)))
=ARRAYFORMULA(IF(A2:A="",,DATE(YEAR(C2:C), MONTH(C2:C)+B2:B, 1)))

Determine if date is a workday in Excel

I have a date in column H10 and need to add 45 days to this date in the next Column I
If there are not dates Column I must be blank
If the 45th day falls on a weekend the calculation must move to the next workday which is Monday
You need to combine two fundamental functions.
First, DATE + INT = DATE. For example, if H10 = 1/8/2015 and H11 = H10 + 10 then H11 will show 1/18/2015.
In your case, you want to use H10 + 45.
Second, you can use the Weekday(date,mode) function to determine the day of the week. Personally, for your purpose, you could use weekday(h10 + 45, 2) which would give a 1-5 for MTWRF, and a 6-7 for a weekend day. So something like
=if(weekday(h10+45,2) < 6, "weekday", "weekend")
=if(weekday(h10+45,2) = 1, "Monday!!", "not monday...")
But we aren't done yet - you need to make sure your day actually ends up on a weekday. So we can do something like this - when determining a weekday, we can use that to determine how much we need to add. If we end up with a 6 (Saturday) we want to add 2 days to push it to a Monday. In the case of a 7, we want to add 1 day to push it to a Monday. Thus, we can simply take the 8 - weekday(h10+45) to add when it's a weekday. So our add value becomes
// determine day type weekday weekend, so add the offset
= if(weekday(h10+45) < 5, h10+45, h10 + 45 + (8 - weekday(h10+45))
You also have a requirement about being blank, so you'll want to wrap whatever you use with
=if(isblank(h10),"", /* your real function here */)
You can combine the functions for IF(), WEEKDAY() and WORKDAY() to calculate your finish date and ensure that it does not fall on a weekend.
I've used
WEEKDAY(WORKDAY(H10+45),16)
to have Saturday and Sunday be represented as days 1&2 respectively.
IF(WEEKDAY(WORKDAY(H10,45),16)=1,WORKDAY(H10,45)+2,IF(WEEKDAY(WORKDAY(H10,45),16)=2,WORKDAY(H10,46),H10))

Google Spreadsheet, finding the previous weekday

In Google Spreadsheet, or excel if its the same, how do I find the last weekday of day D only if D is not a weekday itself.
I.E:
If D equals weekday = do nothing (D equals D).
If D equals weekend = D equals last weekday.
Edit: i tried this to get the workday one month away:
WORKDAY(EDATE(N18, 1)+1, -1)
But I Was getting some weird results. Perhaps it counts red days as well, but I never specified the region anywhere.
Edit again:
This above example actually works, eg:
=WORKDAY("2013-04-06"+1, -1)
=WORKDAY("2013-04-06"+1, -1)
...does the trick.
Another option may be:
=IF(WEEKDAY(D1, 2) > 5, D1 - (WEEKDAY(D1, 2) - 5), D1)
It's not so straightforward, but you can use something like that:
=IF(OR(WEEKDAY(A1)=1,WEEKDAY(A1)=7),A1-CHOOSE(WEEKDAY(A1),2,,,,,,1),A1)
Basically, if the weekday is 1 or 7 (Sunday or Saturday, as this is how Excel treats weekdays), return the date minus 2 if Sunday or minus 1 if Saturday, else the date itself.

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