# Subtracting Business Hours From A Data And Time Value

Jun 26, 2008
I am trying to subtract 12 business hours from a date/time stamp. It has to be during working hours however which are 8AM - 5PM, Monday-Friday.

For example if my value is 6/23/2008 9AM

Subtracting 12 business hours would give me 6/19/2008 3PM.

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Apr 4, 2013

find a formula that will calculate the hours between the two below values but only take in to consideration the business hours (from 9 to 17) and exclude any weekends?

08/03/2013 13:32:00

02/04/2013 09:32:50

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Mar 19, 2007

i work dispatch at a company and we're trying to track how long it takes for a technician to arrive on-site. my worksheet currently includes the date of call-in (E1) , time of call-in (F1), Service Date (G1), Service Time (H1), among many other field. the easy solution is to use the formula (G1+H1)-(E1+F1), and use the answer as the total amount of time, but the problem is if a customer call in at 3:00 PM and we service them at 9:00 AM the following day, it looks like it took 18 hours to arrive on-site, when in reality, since we close at 5:00 PM and open at 9:00 AM, we only took 2 hours to arrive on-site. is there any formula i can write to account for non-business hours and weekends, or is this a bit above what i should expect from excel?

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Jul 23, 2007

What calculation would I enter in a results cell if I wanted to find the delta between 2 times in date format that repersent just the business hours of 8am-5pm, therefore excluding after hours and weekends.

eg.

Date 1 Date 2 Result Time

23/07/07 8:00 24/07/07 14:55 15:55

So far I can't get the caluclation that will compensate for the after hours and week ends.

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Dec 8, 2007

I've being trying t calculate an excel formula to work out a order turnaround time based on opening hours.

Example: The store is open from 8 am to 6pm monday to friday, I need to get a formula to work out how long it took from the time the order was logged until it was completed, during the course of the working day - this works fine but if the order was received on 06/12/07 at 5:20 pm then was finally completed by 7/12/07 at 11:55 the next day I need to figure out how to take into consideration of non working hours during that time. (time from 6pm to 8 am next day

example 2 - if order was sent on the 06/12/07 at 01:30pm and completed at 06/12/07 4:30 then I know its taken 3 hours to complete

example 3 - if the order was sent on the 06/12/07 at 5pm and completed next day at 07/12/07 at 10am - then I know it took 3 hours to complete

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Jun 6, 2012

I have a requirement of calculating time spent on ticket, basically a difference between the time a ticket was logged and when it was resolved.

First, working days are Saturday through Wednesday, i.e weekends are Thursday & Friday.

Second, there are different resolver groups or teams which work on a ticket. These teams have different working hours, some work from 07:30 to 15:30 on weekdays, and others work 24/7. Each ticket will be assigned only to one resolver group.I also need to consider holidays.

So, my requirement is to check the resolver group for each ticket, and decide the working hours based on it. After this check has to be done for holidays, and then difference between logged time and resolved time needs to caluculated in minutes.

Tickets can be logged at any time of the day / week, it may not always be logged during working hours only. in such cases calculate should consider next business day / hour as the start time.

Raw data for tickets is available in =Sheet1!$A$1:$E$21

Ticket NoResolver GroupLogged DateResolved DateTime Spent123456

Team A5/21/2012 1:56:28 PM5/29/2012 2:10:53 PM343543Team B5/21/2012 9:31:02 PM5/27/2012 3:41:22 PM853732

Team C5/22/2012 2:28:06 PM5/26/2012 2:34:31 PM

[Code].....

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Mar 31, 2009

I am using the following formula to calculate business hours.

=(NETWORKDAYS(R9,T9)-1)*("17:00"-"08:00")+IF(NETWORKDAYS(R9,T9),MEDIAN(MOD(T9,1),"17:00","08:00"),"17:00")-MEDIAN(NETWORKDAYS(R9,T9)*MOD(R9,1),"17:00","08:00")

The business hours considered here is 8AM - 5PM, Start time in R9 and End time in T9. Now the problem is its calculating the correct value when the days are same, for e.g.,

Condition 1

When I am giving "31 March 2009 15:00:00" as start time (R9) and "31 March 2009 23:00:00" in end time (T9), I am getting the correct value. i.e, "2:00:00"

Condition 2

While giving "31 March 2009 16:00:00" as start time and "01 April 2009 09:00:00" as end time I am getting a value of "1:00:00", actually the value should be "3:00:00".

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Apr 23, 2008

I use this formula at work to calculate business hours from Mon-Fri:

=IF(OR(L10="",L11=""),"",(NETWORKDAYS(L10,L11,$N$2:$N$23)-1)*($Q$3-$Q$2)+IF(OR(ISNUMBER(MATCH(INT(L11),$N$2:$N$23,0)),WEEKDAY(L11,2)>5),$Q$3,MEDIAN(MOD(L11,1),$Q$3,$Q$2))-IF(OR(ISNUMBER(MATCH(INT(L10),$N$2:$N$23,0)),WEEKDAY(L10,2)>5),$Q$2,MEDIAN(MOD(L10,1),$Q$3,$Q$2)))

where Q3= business start time 8.30am

where Q2= business end time 5.30pm

thus the difference between 18-Apr-08 16:30 and 21-Apr-08 13:30 is 6 hours.

I now need to adapt this formula for another Department that also works on Saturday from 8.30am to 5.30pm.

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Dec 18, 2009

I want to write a macro to add business hours to a datetime value, excluding weekends, non-working hours and holidays.

e.g., I have a value (datetime) of "18/12/2009 11:30:00 AM", I want to add 10 hours to this, so as to get the result as "19/12/2009 12:30:00 PM".

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Jan 9, 2014

computing the number of business hours between 2 dates.

Given the following information:

- Business Hours: 8am -5pm (8:00-17:00)

- Business Days: Mon-Fri

- if entry queued falls on a weekend or beyond the business hours, it should count the first hour on the next business hour.

Example: scenario 1 = Starts Sunday, 10am and Ends Monday 9am; count of hours should be 1

scenario 2 = starts on Monday 6pm and ends on Tuesday 10am; count of hours should be 2

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Apr 12, 2012

I'm trying to find a formula for calculating the number of business hours a service request may be open; this request may have been opened and even closed outside of business hours. I found a formula that appears to be working:

=(NETWORKDAYS(StartDate&TimeCell,StopDate&TimeCell,holidays)-1)*(CloseTimeColumnLetter$CloseTimeRowNumber-OpenTimeColumnLetter$OpenTimeRowNumber)+IF(NETWORKDAYS(StopDate&TimeCell,StopDate&TimeCell,holidays),MEDIAN(MOD(StopDate&TimeCell,1),CloseTimeColumnLetter$CloseTimeRowNumber, OpenTimeColumnLetter$OpenTimeRowNumber),CloseTimeColumnLetter$CloseTimeRowNumber)-MEDIAN(NETWORKDAYS(StartDate&TimeCell,StartDate&TimeCell,holidays)*MOD(StartDate&TimeCell,1),

CloseTimeColumnLetter$CloseTimeRowNumber, OpenTimeColumnLetter$OpenTimeRowNumber)

What I don't know is HOW it works, I don't know what any of those formula's mean (with the exception of NETWORKDAYS). I'm trying to "show my work".

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Dec 24, 2012

Where i want add Business Hours/Days to get the Target Date.

Working hours: 8:00 AM to 19:00 PM

Urgency Type:

ND (Maximum 1 Day 11 hours)

3D (Maximum 3 Day 11 hours)

4D (Maximum 4 Day 11 hours)

5D (Maximum 5 Day 11 hours)

Threshhold - 16:30 PM

Weekends to be Excluded.

Holidays to be Excluded based on Country. Say I have 2 countries India and America, where America has holiday on 12/24/2012 but India does not have holiday on that Day. Hence while calculating Tgt date, India should be calculated normally, for America holiday date need to excluded(There will be a Holiday table based on the countries, not limited to 2 countries).

ex: 1) A ticket opened at 12/26/2012 8:56 AM; Target date will be 12/26/2012 19:00, in this case its 1 day 10:04 hours added to the Opened Time.

2) A ticket opened at 12/26/2012 16:56 PM; Target date will be 12/29/2012 19:00, in this case ticket opened after threshold time of 16:30, Technically ticket should start from next day i.e 12/28/2012 8:00 AM and 1 day 11 hours added to this date.

3) A ticket opened at 12/26/2012 7:56 AM(Before the begin of Working hours); Target date will be 12/26/2012 19:00, in this case its 1 day 11:00 hours added to the Opened Time.

4) A ticket opened at 12/21/2012 17:56 PM(After Threshold time); Target date will be 12/24/2012 19:00, in this case its 1 day 11:00 hours added to the Opened Time. If the above ticket belonged to America, then holiday dates(both 24 & 25) need to be skipped and Tgt date will be 12/27/2012 19:00.

Here is the Sample Data

Country

Ticket

Start Date/ Time

Tgt Date/Time

Expected Tgt Date/ Time

America

ID000123

12/21/2012 18:20

[code]....

I need results to be appear in the "Tgt Date/Time" column. I have also provided results in "Expected Tgt Date/ Time".

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Feb 18, 2004

I need to do an hour calculation on two cells which have dates and times in both. the first cell is a call that we get from a customer and the second is the date and time in which that call is closed by us...meaning that call is complete.

I need to calculate how much time in hours did it take us to complete that call for the customer. I need this calculation to respect our business hours of Monday to Friday 8am-5pm and closed on Saturdays and Sundays.

here are some examples.

from - 2/12/2004 13:00 (thursday)

to - 2/13/2004 9:00 (friday)

answer should be 5 hours

from - 2/13/2004 14:00 (friday)

to - 2/16/2004 10:00 (monday)

answer should be 5 hours

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Jun 10, 2013

I am trying to calculate employees hours of work from information provided to myself.

Each employee is contracted to work 40 hours per week. The information provided to myself is in the format - Employee has worked 39.30 This is in fact 39 hrs 30 minutes. Obviously when I subtract 39.30 from 40.00 I get 0.7 and not 30 minutes. I tried formatting the cell containing these figures to hh:mm but it comes out at 15.30 & 15.00 respectively because it is over 24 hrs. How do I convert the digital number (0.7) to minutes I.e. 30 minutes.

I have tried to convert the 40 hrs into minutes but because the hours are greater than 24 then I struggle.

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Jan 29, 2014

I want to calculate the time in hours between to dates excluding non-working hours and sundays and holidays.

My office timings: 10:00am to 05:30pm Saturday is working day. Only sundays and holidays to be excluded.

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Aug 29, 2009

I am working on a monthly employee work schedule that has 2 stores. All employees work at both stores and the boss wants 2 separate schedules.

I have attached what I have started, which at the moment I am stuck.

I would like to have the Row 5 total hours to always reflect (subtract) a 30 minute lunch. I know it would be easier to have another column, but the boss wants it this way,

I also need the total hours in column H to reflect the total of each day (with the subtracted lunch break). In this column I am having the figures turn red if over 40 hours and green if it under 40 hours.

With having 2 stores with the employees working at both, I need to somehow have the hours of the employees add up from one store to the other (a running total, if you will).

Lastly, if I have an employee not scheduled for a day or need to put other data such as, VAC, HOL or blank cell etc in a cell, how can I get this to work and not have the formula go nuts when it is not in a time format.

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May 21, 2009

This is probably a very simple problem that has me going around in circles. I am attempting to set up a time roster, where I simply want to check:

If "end-time" minus "start-time" is greater than 4:00 (hrs), then deduct 00:30 (minutes) and place that result in another cell.

If it is not greater than 4:00 (hrs) then leave unchanged. I have read thru countless examples on the Forum - but I think that such great learning is driving me mad. Although I do believe that I have the correct format [h].mm - but attempts with IF's have got me confused. This is one of those "Looking down the tunnel towards the flickering light" moments.

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Oct 10, 2009

When I am converting a time from Hours/Minutes to Hours/Tenths, Excel is not converting it consitantely. EXAMPLE: 1:15 = 1.25. When I format the cell to present only one place past the decimal point, sometimes the cell will round up to 1.3, and other times it will round down to 1.2. What am I missing?

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Apr 9, 2012

Any way to enter in a total amount of time and then subtract it from a time shown. So for example:

I want to enter in a time of 26 hours, 10 minutes and 2 seconds: 72:10:02

I cannot find a format that allows me to enter the hours in excess of 24

Then I want to subtract it from a time of the day which will be entered as AM/PM: 02:40:02 AM

Then I want to show the result as a time of day: 00:30:00 AM

Lastly, I want to also show the amount of days adjustment: -1d, 00:03:00 AM

How this can be done through cell formulas?

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Jan 29, 2010

Format Time Cell For Greater Than 24 Hours: Hours & Minutes Only .....

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Jan 13, 2009

I am making a schedule and I would like it to take out a 30 min break if the hours worked is over 6 hours.

I have so far

A B

1 11:00 7:30

=24*(B1-A1)

Gives me 8 hours, I would like it to subtract the 30 minutes only ifthe sum is over 6 and not alter the sum if it is under 6.

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Jan 30, 2007

I have three cells... A1= entry time & H1 exit time...both are formated as such Custom #0":"00 so i don't have to enter the colon with every entry and exit time... my issue is that i want the third cell to count the minutes in cell A1 & H1...

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Feb 15, 2008

I saw this answered somewhere on here but really didn't understand.

I'm trying to set up a sheet for my hours worked for the week.

I have the total per day in H2 through H6 In I2 through I6 I have an accumulative total for the days, so assuming I work 8 hours a day, I2 would be 8:00 I3 would be 16:00 I4 would be 24:00.

In J2 through J5, I'd like to have the weekly accululative worked hours subtracted from 40 so that the total is what I have left work until I hit 40.

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Jun 25, 2009

Here's a simple one guys. How do I subtract 7:30 AM from 4:00 PM to give me 8.5 hours? At the moment it returns either 8:30 AM or (formatted Number - General):

0.3541667

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Mar 12, 2009

I need 15 minutes removed from a difference in time, if the time span falls over 9:00 am through 9:15 am.

I'm inputting time like 8:30:00 in A1 and 10:30:00 in A2, then calculating the difference in A3 (2:00:00). Is there a way to remove 15 minutes from that 2:00:00, since it falls over 9 to 9:15?

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Apr 28, 2014

I need a VBA macro code to get the output like in the excel file which I have attached with this thread. Which means, I need to group the data for every two hours. in the output I need all 4 cols namely A, B, C, D along with extra col namely, interval based on which I need these groupings to be done..

The code has to be really flexible so that it works for all dates and times in the files. Because like this I have to do for 2000 files.....

Original link: [URL] .....

plant area.xlsx

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Apr 17, 2012

I am trying to subtract 45min from the time 00:05, but the result i am getting is 0:40 which is wrong.

I am using below formula.

=TEXT(ABS(B3-$A$3),"-h:mm")

Actual timeTime minusResults00:0500:45-0:40

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Jun 18, 2012

I am trying to work out the response times to an event that my staff attend ( such as a fire alarm)

In C1 will be the time the event was called in, 23:55

In E1 will be the arrival time, 23:59

In F1 I want to show the time taken to arrive on site (response time)

This seems straightforward until the arrival time goes into the next day, such as 00:05 and this is when I have the problem

To make it more complicated, sometimes there is no need for an arrival time to be entered for some events ,with the end user leaving it blank or putting "NA" or "na" etc into the cell

I have tried the below formula which works to a point but leave me with an ######### error if the time is after midnight

=IF(E1="NA",0,IF(E1="n/a",0,E1-C1))

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Jan 23, 2008

I have the formula in my spreadsheet to compute time. It works only if the time in B1 is greater then the time in A1. I would to know if there is a formula to compute time with either negative or postive answer. For example if a carrier was set to load their papers at 12:02pm and ended up loading early at 11:50am I would like the result in C1 to be -12 or (12).

Currently I am using the formula: =HOUR(B1-A1)*6+MINUTE(B1-A1). Like I said, it is all good until someone loads early and then I get a "#NUM!"

Are there any other formula's that I can use or is there a simple modification to the formula I am using?

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Jan 21, 2010

I have some intraday date that looks like this, hope the formatting comes thru when i post this....anyhow, the second column is TIME (ie 15:25 15:30, etc...5 minute time intervals for SP500 stock data. I want to have a column that simply subtracts row 2 column b (time column) from row 1 column b.....when i do this i get a #value....I know this must be possible to get a result i need....ie 15:30 - 15:25 = 5

Do i need to reformat the TIME column into something different? ....

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