Using Excel to calculate multiple future dates - excel

I am working on a revenue report that predicts deposit date related to "Revenue Date" based on observed patterns. For example, one stream of revenue is always deposited the next business day, so I would need a formula that adds one day to anything with a "Revenue Day" identified as Monday through Thursday (because these would be deposited Tuesday-Friday, respectively), and adds three days to a "Revenue Day" identified as Friday (because this would be deposited on Monday), and adds two days for Saturday, and one for Sunday.
I managed to get the correct result for Monday-Thursday using this formula, where G1 is the weekday and H1 is the date:
=IF(OR(G1="MONDAY", G1="TUESDAY", G1="WEDNESDAY", G1="THURSDAY"), H1+1)
Unfortunately, I can't figure out how to also get it to add 3 days to Friday, 2 days to Saturday, and 1 day to Sunday. Is this possible?

Your if formula should take 3 parameters IF(condition, do if condition is true, do if condition is false).
Use ; instead of ,
Sundays does the same this as Moday-Thursday, so no need for a special case for it
... So i would guess that you need something like this :
=IF(OR(G1="SUNDAY";G1="MONDAY";G1="TUESDAY";G1="WEDNESDAY";G1="THURSDAY");H1+1;IF(G1="FRIDAY";H1+3;IF(G1="SATURDAY";H1+2;"bad input")))

Related

Formula that translates a date to Fiscal Year, Fiscal Period, and Fiscal Week

Working on a formula that will take a date and translate it to the format FYxxPxxWx.
For example. Input the date of 03/22/20 and the formula will give you FY20P06W4 which is correct.
However if you input 02/02/20 the formula will give you FY20P05W2. The correct output would be FY20P05W1. This issue also rears its head with the date 09/29/19. It gives you FY20P12W5. The correct output would be FY20P1W1.
Something else weird happens when you put in the date 04/5/20 you get FY21P07W2 when it should be FY20P07W2.
The formula is
=CONCATENATE("FY",RIGHT(YEAR(DATE(YEAR(D5),MONTH(D5)+(10-1),1)),2),"P",TEXT(CHOOSE(MONTH(D5),4,5,6,7,8,9,10,11,12,1,2,3),"0#"),"W",WEEKNUM(D5,1)-WEEKNUM(DATE(YEAR(D5),MONTH(D5),1),1)+1)
I think this issue is caused by the strange weeks where the the month ends and another begins throwing off the formula.
I do have a formula that calculates the years fiscal year start date
=(DATE(YEAR(TODAY())-1,10,1)-(WEEKDAY(DATE(YEAR(TODAY())-1,10,1),1)))+1
This outputs 09/29/19 as the start date of the Fiscal year as its the same week as 10/1/19 which is the first month of the fiscal year. IF that makes sense.
The separate formulas are
For FY and grabs only last two digits of year
RIGHT(YEAR(DATE(YEAR(D5),MONTH(D5)+(10-1),1)),2)
For Period (gives me a two digit Period
TEXT(CHOOSE(MONTH(D5),4,5,6,7,8,9,10,11,12,1,2,3),"0#")
For Week
WEEKNUM(D5,1)-WEEKNUM(DATE(YEAR(D5),MONTH(D5),1),1)+1)
I believe I have a solution for you. Discussion to follow, but here's the full formula:
=CONCAT("FY",RIGHT(YEAR(D5+91+WEEKDAY(DATE(YEAR(D5),10,1))),2),"P",TEXT(IF(MONTH(D5+(7-WEEKDAY(D5)))<>MONTH(D5),IF(MONTH(D5)=9,1,CHOOSE(MONTH(D5),5,6,7,8,9,10,11,12,1,2,3,4)),CHOOSE(MONTH(D5),4,5,6,7,8,9,10,11,12,1,2,3)),"0#"),"W",ROUNDUP(((D5-IF(MONTH(D5+(7-WEEKDAY(D5)))<>MONTH(D5),DATE(YEAR(D5),MONTH(D5)+1,1)-WEEKDAY(DATE(YEAR(D5),MONTH(D5)+1,1))+1,DATE(YEAR(D5),MONTH(D5),1)-WEEKDAY(DATE(YEAR(D5),MONTH(D5),1))+1))/7)+0.01,0))
One issue is that this still calculates 2/2/2020 the way you said was incorrect. When I verify it against a calendar, though, it seems that FY20P05W02 should be correct. If the week that includes the first of the month begins a new pay period, that would mean 2/1/2020, falling on a Saturday, would be the last day of fiscal week 1. That would make 2/2/2020 the first day of fiscal week 2.
To calculate fiscal year, I used RIGHT(YEAR(D5+91+WEEKDAY(DATE(YEAR(D5),10,1))),2). Since you can count on there always being 91 days from the beginning of October to the end of December, it helps with this calculation. In your formula, you had MONTH(D5)+(10-1), which would push you 9 months out past the month in D5. This explains why your result for 4/5/2020 was off by a year.
Fiscal period was a bit trickier, requiring a couple nested IF statements. I used IF(MONTH(D5+(7-WEEKDAY(D5)))<>MONTH(D5) first to account for days at the end of the month that would fall into the next fiscal period, then IF(MONTH(D5)=9 to account for the few days at the end of September that might fall into the next fiscal year. Days at the end of September would default to 1, days at the end of a month that are included in the next fiscal period use the first CHOOSE function (they need the next month's number), and everything else gets the CHOOSE function as you wrote it.
The fiscal week took a bit more, but in the end I evaluated the beginning of the current fiscal month and subtracted it from the date in D5, then divided by 7 and added 0.01 so that even numbers would round up correctly.
I tested this out over a few years of dates and it seemed to be functioning correctly, but let me know if you have questions or issues.
One thing to consider when using WEEKNUM is that you'll have a week that is counted twice at the beginning of the year unless you use option 21 or ISOWEEKNUM. These give the same result as each other, and ensure that only one week number is assigned to any given day, no matter the year.

Find the trading date every 2 weeks (if Saturday or Sunday, then show Friday date)

For a backtesting trading system, I need to rotation my positions every 2 weeks, BUT if the day is a Saturday or Sunday, I need to take the Friday.
Semi-Monthly updates are made twice a month; mid-month and month end.
Mid-month updates are on the 15th calendar day of each month. Should the 15th be a weekend or holiday, the update will occur on the last trading day prior to the 15th.
For example, if the 15th is a Saturday then the update will occur on the close of Friday the 14th.
I need to return a list of dates of rotation based on a start date and end date.
Let's say, I need every 15 days from January 1st 2018 to 31st December 2018, it should return only the valid dates based on the rules described above.
The formula should be for Google Sheet or Excel.
I tried the following:
It is not returning exactly what I need, since the google sheet googlefinance formula allows to use daily and weekly intervals (1 or 7). See below the googlefinance definition (https://support.google.com/docs/answer/3093281?hl=en):
"interval - [ OPTIONAL ] - The frequency of returned data; either "DAILY" or "WEEKLY".
interval can alternatively be specified as 1 or 7. Other numeric values are disallowed."
You need to be more precise in your specifications. You've provided multiple inconsistent intervals. eg: Two weeks (which would be every 14 days and will always fall on the same weekday); every 15 days (which will NOT be mid-month and EOM over most time periods); mid-month and end-of-month.
I suggest developing formulas for each of your desired intervals.
Once you have developed those relevant formulas, depending on your desired interval, to avoid a date falling on a weekend (or holiday if required for your system), you can use the WORKDAY function:
=WORKDAY(computedDate+1,-1, [holiday])
If your computedDate is on a Saturday, or Sunday; by adding 1 day and then subtracting to the previous workday, Friday will result.
If your trading interval is every Two weeks, you only need to ensure that the First date is not on a Saturday or Sunday. For other intervals, you may have to apply the formula to every computedDate.

Excel Date difference without weekend days

Last time I posted a quite vague story about a date difference challenge which I haven't solved yet. I will try to elaborate since I have tried everything in my power and the problem still isn't fixed.
I currently have three columns.
Column 1 (F)
the date a car starts its repairs (format DayOfWeek-DD-MM-YYYY)
Column 2 (G)
the number of days in which the car is repaired (service level agreement [SLA]; the standard is 10 days)
Column 3 (H)
the output, which is the date the car should be finished. So the number of days after the startdate*
*Th thing which makes this case difficult is that only weekdays are included.
So, for example:
If a car starts repairs on Monday 1st of August, the finish date is Tuesday the 14th of August.
I tried to solve this with the following formula:
=IF(WEEKDAY(F218)=2;(F218+11);
IF(WEEKDAY(F218)=3;F218+12;
IF(WEEKDAY(F218)=4;F218+13;
IF(WEEKDAY(F218)=5;F218+14;
IF(WEEKDAY(F218)=6;F218+15)))))
In other words:
If startdate = Monday then startdate + 11,
if startdate = Tuesday then startdate + 12, etc.
This works, but I have 300+ rows and dragging this function down doesn't change the cell references.
I know about the NETWORKDAYS and WEEKDAY functions, but I encounter problems with any Monday where only 1 weekend passes and other days where 2 weekends pass.
First of all, I am assuming that your first day - whatever day that may be - is considered day one (1). So in my scenario, if a SLA states 2 days to complete a repair and the start date is a Monday, I'm assuming the repair should be completed by Tuesday.
My assumption is based off this comment by #RonRosenfeld:
...although you might have to subtract 1 from the number of days
With all that being said, try this formula in your cell instead:
 NOTE: You may need to change things like commas and semi-colons to adjust for your region.
=WORKDAY($F2,$G2-1)+LOOKUP(WEEKDAY(WORKDAY($F2,$G2-1),16),{1;2;3},{2;1;0})
What it does:
WORKDAY($F2,$G2-1)
First we want to find out exactly what day the repairs should be completed by if weekend days (Saturday and Sunday) were included. This part of the formula will simply give us a place to start.
$F2 is your repair start date
$G2 is the number of days a repair is supposed to take (you may need to add a column for this, because, as you stated, the SLA may change and you need the formula to be easily adjusted)
WEEKDAY(WORKDAY($F2,$G2-1),16)
The WORKDAY function from above is wrapped inside a WEEKDAY function. This WEEKDAY function is written to account for each day of a week to be assigned numbers. The [return_type] parameter of 16 tells Excel to label them as "Numbers 1 (Saturday) through 7 (Friday)". We chose 16 so that our LOOKUP function is easier to write. This part of the formula only returns a one-digit number, which in turn will be used to figure out what day of the week we actually want when excluding weekends.
LOOKUP(WEEKDAY(WORKDAY($F2,$G2-1),16),{1;2;3},{2;1;0})
We finish the formula by adding the result from a LOOKUP function using the first form of the function: LOOKUP(lookup_value,lookup_vector,[result_vector])
We found our lookup_value in the previous bullet point using the WEEKDAY function. Now we want Excel to use the lookup_vector - {1;2;3} in our formula - to find the correct value to add to the first part of our formula (which is found using the [result_vector] - {2;1;0} in our formula).
The lookup_vector only has three values: 1, 2, and 3.
1 signals Saturday
2 signals Sunday
3 signals all other days
Think of the lookup_vector and [result_vector] as forming a matrix/table from which our value is found:
1   2
2   1
3   0
If our number of repair days pushes us to:
a Saturday (1), the formula adds 2.
a Sunday (2), the formula adds 1.
any weekday, the formula adds 0 (since weekdays are acceptable).
Hopefully all of this makes sense. Best of luck to you!

Using a dynamic single formula to calculate a date

This is a follow up to an earlier question.
#ForwardED I am trying to convert your original single static formula into a single dynamic formula.
Unfortunately my employer's filters will let me up certain things to a hyperlink, but will not let me download or view from the same site. I am also trying to come up with a formula for floating dates.
Below is a copy of the expanded explanation I gave on the original question. I am not sure if you missed it or not. It deals with holidays that have a set date like Christmas, 25th of December of every year. However if it fall on a Saturday the time of work is the Friday and if it is on a Sunday the day off is the Monday.
Dealing with a holiday falling on a Saturday or Sunday
Again we need to refer to some cell in your spreadsheet with the year so I will again use Q10 as the example and we will assume a date of 2014/10/24.
=IF(WEEKDAY(DATE(YEAR(Q10),12,25))=7,DATE(YEAR(Q10),12,24),IF(WEEKDAY(DATE(YEAR(Q10),12,25))=1,DATE(YEAR(Q10),12,26),DATE(YEAR(Q10),12,25)))
The formula checks first if the weekday is a Saturday. We do this using a function that will return the day of the week See step 2) from the original question. It is this part from the equation above:
WEEKDAY(DATE(YEAR(Q10),12,25))
It will return a single integer 1 through 7 corresponding to the day of the week the date function results in, in this case. If its a 1 we known its Sunday, if its 7 we know its Saturday. So the check for Saturday is:
WEEKDAY(DATE(YEAR(Q10),12,25))=7
If WEEKDAY()=7 is true then we provides the date of the day before which is really just subtracting 1 from the date we were looking at. We use this part of the formula to calculate that:
DATE(YEAR(Q10),12,24)
notice how I changed the day from 25 to 24. An alternate way would be to recycle our date and make the computer do one more calculation using this formula:
DATE(YEAR(Q10),12,25)-1
or
DATE(YEAR(Q10),12,25-1)
That all sits in the TRUE portion of the if statement. so if the date does not fall on Saturday then we wind up in the FLASE portion of the IF statement. Here we check with a second IF for the date falling on a Sunday. we use the same theory and process as we did for the Saturday check.
IF(WEEKDAY(DATE(YEAR(Q10),12,25))=1,DATE(YEAR(Q10),12,26),DATE(YEAR(Q10),12,25))
Placing an IF statement inside an IF statement is commonly referred to as "nesting". This whole IF statement happens in the FALSE portion of the previous IF that checked to see if it was Saturday. This time we checked for Sunday:
WEEKDAY(DATE(YEAR(Q10),12,25))=1
When this is true, then we need to increase the date by 1 day instead of decreasing it like was done for Saturday:
DATE(YEAR(Q10),12,26)
or
DATE(YEAR(Q10),12,25)+1
or
DATE(YEAR(Q10),12,25+1)
So that was the true portion of the Sunday check. Logically speaking the only way to get to the FALSE portion of this nested IF statement is to fail the Saturday check and then fail the Sunday check. Which means you do not need to go through and check if is the WEEKDAY comes out as 2, 3, 4, 5 or 6! Its one of those by the process of eliminating Sunday and Saturday (1 and 7). And if the date falls on Monday-Friday we dont need to change the date and can leave it just as is:
DATE(YEAR(Q10),12,25)
And I realized I did not explain how the date function works, though I think I tried to in one of the previous questions...regardless! DATE(arg1,arg2,arg3) requires three different arguments as integers or other functions that return integers.
arg1 is the year so 2014, 1995, 1965 are all acceptable integers. Also we could use YEAR(Q10), where the cell Q10 holds the date of 2014/10/24. In this case YEAR(Q10) would return 2014.
arg2 is the month and needs to be an integer in the range of 1 to 12. Again you can always use a formula that returns an integer in that range as well such as MONTH(Q10) which from our previous value of Q10 would return 10.
arg3 is day and similar to the above it needs to be an integer. A formula such as DAY(Q10) would return a value of 24.
What this means is if we know what day a holiday is on we can force it to a date by supplying a set month and day, and letting the year be determined by a formula that supplies the year you are interested in. So if you look at the last formula you can see we fixed the month at 12 and the day at 25. They year will be determine from the year of the date supplied in cell Q10.

How do I calculate a date by adding 30 calendar days, where end date must be business day?

I'm wondering if this is possible. I am creating a spreadsheet to track project due dates. Each project must be completed by the 30th calendar day, but must be turned in on a business day.
Currently, I am just adding 30 days to the start date but this means some due dates aren't always accurate. For example, if the 30th day is Saturday, April 2nd, then the real due date would be Friday April 1st.
Is there a way to construct a conditional such that the due date equals the 30th calendar day, unless that falls on a weekend / holiday, where it then falls on the next earliest business day?
I've been struggling to figure out a way to do this.
For English settings in Excel, with a date in A1, in B1 enter:
=IF(TEXT(A1+30,"DDDD")="Sunday",A1+28,IF(TEXT(A1+30,"DDDD")="Saturday",A1+29,A1+30))
This simple-minded approach only handles Saturdays and Sundays, not arbitrary holidays.
I would prefer more elegant way like using WORKDAY.INTL
=WORKDAY.INTL(A2+31,-1,1,E2:E)
Explanation: start date + 31 days (1 day more than maximum calendar days)
then subtract 1 working day - going to last previous working day
Reason: because this formula does know when are weekends (by using variables) and also knows to skip hollydays by a custom list.
here is an example sheet you can use
Revised after comment:
Try this:
=(A4+30)+CHOOSE(WEEKDAY(A4+30),1,0,0,0,0,0,-1)
Your date, in A4, + 30 days, then add an amount of days until the next workday. If A4 + 30 is a Saturday it will subtract 1 day, a Sunday will add 1.

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