Creating an letter/number ID from the date using excel VBA - excel

I am new to Excel VBA
Lets say I entered the date: 2022/05/31 I would like to generate AE31
Where A represents the year,
E represents the month and
31 represents the date
How could I generate this ID data in excel using VBA?

That could be:
TheDate = DateSerial(2022, 05, 31)
ID = Chr(Year(TheDate) - 2022 + 65) & Chr(Month(TheDate) - 1 + 65) & CStr(Day(TheDate))
ID -> AE31

Related

Excel 2016 calculate fiscal year

Fiscal Year starts July 1 - June 30, I need to calculate and display the number of Fiscal Years between 2 dates.
For example: 01/01/2018-12/31/2018. Result (YYYY-YYYY) should give 2 fiscal years:
2017-2018 (July 1, 2017 - June 30, 2018)
2018-2019 (July 1, 2018 - June 30, 2019)
Its easy to calculate if there are only 2 fiscal years between 2 dates but using =IF(StartDate<DATE(YEAR(StartDate), 7,1),CONCATENATE(YEAR(StartDate)-1, "-", YEAR(StartDate)), CONCATENATE(YEAR(StartDate), "-", YEAR(StartDate)+1)) or
=IF(EndDate<DATE(YEAR(EndDate), 7,1),CONCATENATE(YEAR(EndDate)-1, "-", YEAR(EndDate)), CONCATENATE(YEAR(EndDate), "-", YEAR(EndDate)+1))
But how do I capture if there are more than 2 fiscal years? For example: 01/01/2018 - 09/20/2019
I would prefer the fiscal year be entered in a table range and automatically insert a new row if there are more than 2 fiscal years. I'm looking for either formula or vba solution.
last time i had to do this was for a specific report where the dates are written in cells:
dim s as long, e as long
if month(cells(1,1).value) >= 7 AND day(cells(1,1).value) >= 1 Then
s = year(cells(1,1).value)+1
else
s = year(cells(1,1).value)
end if
if month(cells(2,1).value) >= 7 AND day(cells(1,1).value) >= 1 Then
e = year(cells(1,1).value)+1
else
e = year(cells(1,1).value)
end if
'FY range:
cells(3,1).value = "FY" & s & "-FY" & e
rehashed the code for you, untested

Creating flags for calculating rolling averages in excel

I have a data sheet which looks like:
year month
2017 2017-01
2017 2017-02
2017 2017-03
......
2018 2018-04
2018 2018-05
Note the column month contains text string. I need to create a new column flag in excel which filters which months are to be used in calculating rolling 12M averages for current month and which months are to be used for calculating rolling 12M averages for previous year.
For example today's date is 5/24/2018, so month 2018-05 will be marked as "current". months between 2018-04 to 2017-05 will be marked as "both". month 2017-04 will be marked as "previous". Rest all months will be marked as NA. My final data should look like this:
year month flag
2017 2017-01 NA
2017 2017-02 NA
2017 2017-03 NA
2017 2017-04 Previous
......
2018 2018-04 Both
2018 2018-05 Current
I am having trouble implementing this logic in excel as the column month is a text string and simply using IF condition doesn't works for me. Any leads on this is appreciated.
Edit:
I tried converting the months to a number by using =DATEVALUE(B2 & "-01").
I stored the number for current month in a variable curr.
Now I am using the following formula =IF(B22=curr,"Current", IF(B2=curr-395,"Previous","Both")).
This creates the flag column which I require although there's still an issue based on whether the month has 30 or 31 days. Any solutions for this please?
One way to do it is to use DATDIF.
=DATEVALUE(B2 & "-01") will give you the first of each month in column B.
To return the month number use =DATEDIF(C2,TODAY(),"m") where column C holds the DATEVALUE formula. This will return 0 for this month, 1 for last month... 13 for April 2017.
Now check to see if the count of months = 0 then it's current, if it's greater than 11 it's NA, otherwise it's both. =IF(D2=0,"Current",IF(D2>11,"NA","Both"))
... Edit ....
That's wrong - forgot the "Previous" and "Both" isn't 12 months ....
=IF(D2=0,"Current",IF(D2>13,"NA",IF(D2=13,"Previous","Both")))
As considering your column month format = "YYYY-MM" this code may be helpful
this is Excel function, to use it you need to save this function in the module and use it. `
Function MyDateCal(cell As Range) As String
Dim YearCurrent, YearCell, monthCurrent, MonthCell As Integer
Dim cellVal As String, DiffMonth As Integer[![enter image description here][1]][1]
cellVal = cell.Value
MyDateCal = "NA"
'cellVal = Cells(1, 1).Value
YearCurrent = Year(Now())
monthCurrent = Month(Now())
YearCell = CInt(Left(cellVal, 4))
MonthCell = CInt(Right(cellVal, 2))
DiffMonth = 12 * (YearCurrent - YearCell) + (monthCurrent - MonthCell)
If DiffMonth = 0 Then
MyDateCal = "Current"
ElseIf DiffMonth > 0 And DiffMonth <= 12 Then
MyDateCal = "Both"
ElseIf DiffMonth = 13 Then
MyDateCal = "Previous"
End If
End Function
`

Week number to Month number

I have a date with this format : 14w01 (year : 2014 week number : 1)
I want to convert this date in month like this : 14m01
Is there a function which converts a week number in a month number ?
Maybe something like this (in vba, not in formula) :
Format(weekNumber, "mm")
Thank you
It depends on how the weeks are defined. One way is to say that the first day of week#1 of a year is 1 January of that year. For this definition, a typical UDF is:
Public Function MonthFromDt(s As String) As Integer
Dim yr As Integer, wk As Integer, d As Date
ary = Split(s, "w")
yr = CInt(ary(0)) + 2000
wk = ary(1)
MonthFromDt = Month(DateSerial(yr, 1, 1) + 7 * (wk - 1))
End Function
There are other definitions of week number.
The DateFormat function is quiet comfortable, however the DateValue function, which parses a date, won't probably support your week format.
I suggest a trick with DateAdd, as DateAdd can handle weeks.
First split your date in year and week number:
Dim parts
parts = Split("2014w33", "w")
Dim year
Dim week
year = CInt(parts(0))
week = CInt(parts(1))
Then, add both to a "zero-date" to add up to the final date. Note that if you give "0" as year for DateAdd, VBA compiler interprets 2000.
dim DateResult
DateResult = dateAdd("yyyy", (year - 2000), DateValue("Jan 1, 0"))
Debug.Print dateResult
DateResult = dateAdd("ww", week, dateResult)
Debug.Print dateResult
Then show the result reformatted:
Debug.Print Format(DateResult, "yyyy\mm")
This prints on my side:
01.01.2014
20.08.2014
2014m08
August 2014, there is week 33 if I look up in the calendar. Seems correct.
I found a way to do it without VBA (and only using Formulas). This assumes A1 contains the "14w01" format
=LEFT(A1,2)&"m"&TEXT(MONTH(DATE(20&LEFT(A1,2),1,1)+(RIGHT(A1,2)*7)),"00")
Heres a breakdown of what the code does..
LEFT(A1,2) returns "14" (year)
MONTH(DATE(20&LEFT(A1,2),1,1)+(RIGHT(A1,2)*7)) converts the week # to the month # and it takes in the year 20&LEFT(A1,2) as well as week # RIGHT(A1,2)
TEXT(...,"00") pads the month # with a 0 if necessary (i.e. 3 becomes 03)
Then we just combine everything together to get "14m01"

J2ME: Get only year/month/day from DateField

I'm trying to use dateField to display which year, month or day has been selected in the calendar.
public DateField getDateField() {
dateField = new DateField("dateField", DateField.DATE);
dateField.setDate(new java.util.Date(System.currentTimeMillis()));
}
Then I'd like to use this code, but instead of the long date "Thu Oct 07 00:00:00 GMT+02:00 2010" I would like to just see what month has been selected, like "October" or "10" etc.
String month = dateField.getDate().toString();
System.out.println("Selected month: " + month);
I can't find anything good on this dateField thing... I want to get the short date like "2010-10-05" if that specific date has been selected in the dateField.
Calendar cal= Calendar.getInstance();
cal.setTime(dateField.getDate());
String date = cal.get(Calendar.YEAR) + "-" + ( cal.get(Calendar.MONTH) + 1 ) + "-" + cal.get(Calendar.DAY_OF_MONTH);

How do you determine Daylight Savings Time in VBA?

What function will let us know whether a date in VBA is in DST or not?
For non-current dates (DST 2007+):
First, you need a function to find the number of specific weekdays in a month:
Public Function NDow(Y As Integer, M As Integer, _
N As Integer, DOW As Integer) As Date
' Returns Date of Nth Day of the Week in Month
NDow = DateSerial(Y, M, (8 - Weekday(DateSerial(Y, M, 1), _
(DOW + 1) Mod 8)) + ((N - 1) * 7))
End Function
Then, you can check for the DST day versus the following function calls:
Fall: NDow(Year(newdate), 11, 1, 1)
Spring: NDow(Year(newdate), 3, 2, 1)
For the current date:
Call the Windows API function GetTimeZoneInformation,
and it will return an enum (integer) with the status.
I got the code for this from Chip Pearson's great Excel site.
Pearson's site
For anyone wondering how to account for daylight saving time in Europe (central europe time), I modified the script from Chip Pearson. The last sunday of March (2 AM to 3 AM) and October (3 AM to 2 AM) are the days when the hour switching occurs.
Following code is the click event of a button in Excel:
Dim dates As String
dates = "A1:A20"
For Each c In Worksheets("Sheet1").Range(dates).Cells
If (IsDateWithinDST(c.Value)) Then
c.Value = DateAdd("h", 1, c.Value)
End If
Next
The module containing the necessary methods are to be found here.
More info on DST in Europe.

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