# Calculate Future Dates From Start Date With Varying Time Period/cycle

Sep 11, 2009
I need to determine a formula which will allow me to calculate a future date based upon a current date with varying time periods.

For example:

I have a bill which is paid on the 15th and last business day of each month. I would like to be able to see the next due date regardless of what day of the week it is.

I have a bill which is paid every other Tuesday. I would like to know the next due date without having to enter +14 for every due date in the future. In other words, it is preferable to be able to open the spreadsheet and automatically see the next due date, not use autofill to repeatedly add +14 to a previous date which would limit the # of future due dates that could be calculated.

I have a bill which is paid on the last business day of each month, not the last Friday of each month. I would need excel to return a value for the last day of the month which = Monday-Friday, regardless of what day of the week it may be as long as it isn't Saturday or Sunday(holiday exclusion would be nice but not required).

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Sep 16, 2009

I'm trying to combine monthly calculations with "today" and with "workdays"

Example:

start date = 01/01/2009

today's date 09/16/2009

formula result = 10/01/2009 ; or if 10/01/2009 is a Sunday, result = 09/29/2009 (not 02/01/2009, 03/01/2009, etc)

=edate gives me a month but it doesn't skip weekends or calculate beyond today's date

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Mar 6, 2014

I am trying to calculate the average start time for a machine over a period. However the machine start time varies from 10:00 pm to past midnight. I have tried reviewing past posts but cannot seem to find a similar query.

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Dec 13, 2013

test.xlsx

I need to calculate the time elapsed between start and finish dates. I've figured the TODAY function, as explained here but I'm referring solely to dates in cells. How to?

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Nov 15, 2008

First and foremost I would like to congragulate you on this wondeful piece of code in the below link...

The query was to get a future date excluding Fridays and Holidays...

http://www.excelforum.com/excel-work...rkingdays.html

I have a similar query and therefore I pasted this link...

I actually wanted to get a future date using a Dynamic two day off as my the offs keep on changing as well as incorporate Holidays and Leaves if any..

Now Holidays would be official Public Holidays and

Leaves would be taken by the employee..

The code needs to pick the Leaves + Holidays and different offs maybe even more than 2 offs...

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Mar 13, 2014

I have a small project at work where I am being asked to put a simple spread sheet that will calculate a start/stop time - and also include the date. For example:

Start time 5pm, date: 3/13. The spread sheet to auto calculate what the stop time and date will be if a specific amount of hours is to be calculated. For example in this case, 12 hours. From calculating in my head that would be 5am the following day. However, how can I get this in excel to work and therefore all i would have to do is enter the start time and date, + 12 hrs, and excel would calculate the time/date after the additional 12 hrs.

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Feb 28, 2013

I can calculate total hours when a user enters a start date/time and a finish date/time. The kick is I only want to include hours from 2:00 PM to 12:00 AM (10 hour period). So assuming all the start and end times will be in this range, how can i calculate work hours over multiple days? For example: Start date/time = 2/26/13 2:30 PM and end date/time = 2/28/13 10:30 PM. I want my calculated hours to show 28 hours.

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Sep 24, 2007

how to calculate in data serie cyles the:

- Mean Amplitude

- The Time (minutes) cycle between Maximum and Minimum cycle values (If the Cycle value X Amplitude)

- Cycle Mean Time.

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Jun 12, 2014

Trying to automate the period part of the impt function

To calculate current value of loan i have the below formula below with the 3 being the current period

=IPMT(4.3%/12,3,5*12,-7000)/(4.3%/12)

What i would like to do is for the period to be self calcuating from current date and the loan start date. I can return a value in days using start date - today() and aware month function returns the month number but stuggling to find a way to work out cumulative month from the start date.

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Sep 16, 2009

Sometimes my due dates need to be on the 15th of the month, for which DLL and Donkey gave me: =DATE(YEAR(TODAY()), MONTH(TODAY()) + (DAY(TODAY()) > 15), 15)

This works great except sometimes the 15th is on a Sunday which means I need the result to be the 13th, and sometimes it's on a Saturday which means I need the result to be the 14th. FYI: I am a n00b..

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Mar 16, 2009

I would like to find out if a job took more than 24 hour cycle time (eg. 6:00 am to 5:59:59 AM next day). data:

A1 = received date & time (format "m/d/yyyy h:mm")

B1 = completed date & time (format "m/d/yyyy h:mm")

my formula is '=if(B1-A1>"24:00"+0,"Yes","No"). The problem with the formula is that it doesnt exclude weekends nor public holidays. I couldnt formulate a solution using networkdays function......

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Jul 10, 2013

Excel formula to calculate period between multiple dates.

Column A has first arrival

Column B has first departure

Column C has second arrival

Column D has second departure

Column E has third arrival

Column F has third departure

Column G has forth arrival

Column H has forth departure

Column I has fifth arrival

I need total period stay from all these columns.

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Nov 9, 2011

I'm trying to calculate a date in the future and subtract one day.

The date entered in N38 is 11/09/11.

The term entered in months in C8 is 24.

I want N39 to return the date 24 months in the future minus one day.

So N39 should dispay 11/08/13

How the heck do I do that?

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Jul 25, 2007

I am trying to create a spreadsheet that will automatically calculate a date in the future.

The future date calculated needs to take the time NOW (as the user completes a field) and determines if this is before MIDNIGHT on the following SUNDAY. If so it calculates the date as a Tuesday 2 weeks on. For example... I request a date now on 1st Jan which is a Thursday. This is before midnight Sunday and so the date calculated would be Tuesday 20th January.

If the time NOW is after MIDNIGHT Sunday and before the next TUESDAY.. ie 0001hrs on the Monday and 2359hrs on the Monday then the date returned should be Tuesday 3 weeks on.. e.g 27th.

It would also need a function that would allow the total number of referrals on a Tuesday to 20 at which point it would overspill and provide a date on the Friday of the same week.. so in the first example it would be Friday 23rd

Is this something that can be achieved with formulas and a set of dates for it to calculate from or do I need to find someone who can do it in VBA for me.

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Mar 8, 2013

I need also to calculate difference between dates(dd-mm-aaaa hh:mm) in workhours ( hh:mm):

The work period is 9-18 with lunch interval 13-14 The startdate and end date could be out of the work hours and i can't include the extra hours. I can have several days (workdays) at the difference, but i should maintain the format hh:mm.

Ex1:

Startdate 05-03-2013 18:34 ( date to calculation should be 05-03-2013 18:00)

end date 06-03-2013 10:30

Time Difference 1:30 ( from 9 to 10:30 of 06-03-2013 )

will be equal to:

Startdate 06-03-2013 8:34 ( date to calculation sould be 06-03-2013 9:00 )

end date 06-03-2013 10:30

Time Difference 1:30 ( from 9 to 10:30 of 06-03-2013 )

Ex2:

Startdate 06-03-2013 12:01

End date 06-03-2013 14:28

Time Difference 01:29

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Aug 25, 2007

I am using the same structure to update another column, under the same sub:

If Target.Column = 5 Then '

Select Case Range("d69").Value

Case "CB1W"

ActiveCell.Value = DateAdd("ww", 1, Now())

Case "CB2W"

ActiveCell.Value = DateAdd("ww", 2, Now())

Case "CB3W"

ActiveCell.Value = DateAdd("d", 21, Now())

Case "CB4W"

ActiveCell.Value = DateAdd("d", 28, Now())

Case "CB5W"

ActiveCell.Value = DateAdd("d", 35, Now())

Case "NI"

ActiveCell.Value = ""

Case Else

ActiveCell.Value = ""

End Select

I would like to apply the code to the whole column but if I change Select Case Range("d69").Value to Select Case Range("d2:1000").Value I get a Type Mismatch Error (13) - (on Case "CB1W" ) - column d cells are data validation drop down boxes that get their value form a named ranged :Lead_Status. The column is also formatted as Text. (I applied the code to d69 because I have data already in the other cells which I don't want altered till I have the code working)

I would also greatly appreciate your advice on how to incorporate the WEEKDAY function to exclude weekends for the DateAdd function.

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Dec 27, 2007

I want to calculate a date that is 28 days in the future. I don't want to exclude any days - However - if the end date falls on a weekend or holiday, I would like to push it out to the next business day.

I currently have the weekends covered, but am stumped on the holidays.

(For weekends, I am using the WEEKDAY function on a hidden sheet, and then the following 3 IF statements:

IF today + 28 = Mon.-Fri., then give me today + 28.

IF today + 28 = Sat., then give me today + 30.

IF today + 28=Sun., then give me today + 29.

I have tried adding an additional IF statement to address a specific holiday - namely, President's Day on 2/18/08, which is a Monday - but it won't add the extra day, because I think my initial IF statement re: Monday being today + 28 is overriding it.

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May 14, 2009

I am creating a timesheet using excel 2003 users enter their shift start/finish time and a break start/finish time. Emplyee's can work night shifts (ie across midnight).

There are penalty rates which apply at different times. I need to be able to work out the amount of worked time that fits into a certain time period. eg. 10pm-7.30am, 7.30am-10pm.

I have a solution based on A clever formula from Daniel Maher that will calculate time within a period. But it doesn't work when the shift goes over two days.

I have attached a spreadsheet to help show the problem .......

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Jun 19, 2014

I have a userform that time stamps on my userform as soon as i open the form, is there a way that when I submit, that the amount of time that I was on the call to be put in my column on my worksheet as minutes?

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Oct 20, 2012

I need to input a future date and time into one cell. For example, if I have a member ship that ends on October 20th at 3:00 pm exactly the kind of format you get when you enter the function "NOW". I would like to put that into one cell and then be able to add and subtract from it.

For example I would like to do something like this, if I had inputed the date and time in A1:

"=Now-A1", it would be cool if I can get the remaining hours or minutes along with how many days are left but not completely needed.

It would also be beneficial if I can drill down further and do it by time zone as well.

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Aug 4, 2009

I need to calculate the difference in Years, Months and Days between:

Date 1 = TODAY()

Date 2 = 4 years after a date in cell A1, which will always be earlier than today's date

(A bit of backround - I have certain risk management procedures that have a lifespan of 4 years. I want to calculate the time between now and 4 years after the date the procedure was completed, essentially to see how long before they have to be redone).

So far I have:

=DATEDIF(A1+4,TODAY(),"y")&"y "&DATEDIF(A1,TODAY(),"ym")&"m "&DATEDIF(A1,TODAY(),"md")&"d"

But that returns #NUM!.

Removing the +4 obviously just calculated the difference between the date in A1 and today, but I need the date in A1 PLUS 4 years and today.

I have also tried:

=(DATE(YEAR(A1)+4,MONTH(A1),DAY(A1))-TODAY())/365.25

which works in theory, however:

a) no consideration for leap years

b) does not return nY, nM, nD - only the decimal.

However I would be happy to use this method if I could convert it to Years Months Days.

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May 3, 2008

This may be a bit vague but here goes.

I have to calculate the difference between the start time and end time of a job. The only catch is, how can I avoid calculating "out of hours" time. So, if a job goes from 9am to 9am the next day, I want it to avoid calculating between the hours of 23:30 and 03:30.

Another example is if a job goes from 02:00 to 04:00, I want it to avoid the tim between 02:00 and 03:00.

If there is a difference in days, so the job goes overnight, how do I take that into consideration also.

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Aug 19, 2012

How to create the formula for dates formatted with periods.

Dates are as follows:

01.07.12 - should return as 1-Jul

01.08.12 - should return as 1-Aug

02.08.12 - should return as 2-Aug

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Mar 9, 2014

I'm trying to workout how to take a known initial date a repeating frequency and work out the next due date from today.

Example

Initial Date :- 1st of January 2014

Frequency :- every 5 weeks

Current Date :- 9th of March 2014

Next Due date should be :-12th of March 2014 (if I worked it out correctly from my paper calendar)

I want to use a cell formula to do this for different initial dates and varying frequency periods (the frequency will always be whole weeks i.e. 1,2,3,4,5,6,7,8,8,10)

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Feb 27, 2010

Is it possible to calculate hours if both the start and end time are in the same cell. Unfortunatly the developers of our scheduling program developed it so when you export the schedule to excel it shows Greg in A1 and 3:00pm-9:00pm in A2. I would like to have excel calculate the 6 hours so I can use it to auto generate another spread sheet I am making.

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May 5, 2009

Work shifts run on a four-week, 28-day cycle always beginning on a Monday.

In 2009, the first such cycle began on Monday 12/1/09.

In my 2003 worksheet, I have the current year in A1. I want the date of the beginning of the first cycle in that year to appear in B1. This should update automatically when the year in A1 is updated.

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May 7, 2014

I needs a formula (not VBA) to calculate the required start date.

I have to do a job of 14 working hours and this job must be finished on 05-may-2014 13:00

My working week is from monday u/i friday and every day I work from 08:00-16:00

At what time do I have to start the job to get it done in time.

The formula should give this result: 01-may-2014 15:00

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Jun 27, 2013

compare two lists of data in order to identify the possible matches considering date&time and the location stored in different columns as shown in the example file attached. The range of date and time for the comparison is one hour, but it can be changed...

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Jun 26, 2007

Take a look at the attachment file. Those highlighted in yellow are entered by the user. What is the formula to calculate the End date in (A6) after the user has entered the start date (A2) & the number of weeks (A4)?

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Aug 9, 2012

How to create a formula to determine the longer period of time between two date calculations and enter the longer period of time in the cell.

My Spreadsheet:

Cell M2: Birthdate (entered in cell as 11/1/2004)

Cell J2: Last date of service (entered in cell as 10/31/2011)

Cell G2: Calculation to enter the longer period of time between (M2 (year) + 21) and (J2 (year) + 7)

Example using information from above:

2004 + 21 = 2025

2011 + 7 = 2018

2025 is the result I want added to G2

If there is any way to include the month/year in G2 that would be ideal.

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