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Adding Time To A Date Excluding Weekends And Holidays

I've been reading up on Excel's date and time functions and can't really figure out the best way of doing this. Any input would be appreciated.

I have a total amount of time that a machine should take to finish a task. I'd like to enter a date and time into a cell (Start Date) and have another cell return the date and time that the machine should be done with the task excluding weekends, and holidays (End Date). This would be based on a certain number of "working hours" (hours in the workday minus break periods) that would be calculated in another cell.

Has anyone done anything similar to this or could point me to some good info on it?

Thanks very much in advance


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Similar Topics







I need a formula to calculate Turn Around Time. Find below the sample data and details for your reference.

Received Date & Time: 10/29/2010 3:27:00 PM
Completed Date & Time: 11/1/2010 3:57:32 AM
Business Hours: 08:00 AM to 05:00 PM
Non Business hours: 05:00 PM to 08:00 AM
Weekdays : Monday to Friday
Weekends: Saturday & Sunday

If I calculate TAT for this time period it should show me 1 hour 33 minutes, why because business hours are closing by 5:00 PM on 10/29 so it should not calculate duration after 5:00 PM to until 08:00 AM on next day, however 10/29 is Friday so formula should calculate the duration from 10/29 Friday 3:37 PM to 10/29 5:00 PM and again it should calculate from 8:00 AM on 11/01 Monday and formula should skip Saturday & Sunday.

In this scenario I have completed the task before 8:00 AM on 11/01 so it should show duration of 1hour 33 minutes.

Please let me know if you need any more details


Hi Guys,
I need help....I am working production scheduling with Start and End time but there is a lunch time and tea time. Is there any formula to calculate Start time to End time with excluding lunch time?
Here is example :

Lunch time :12:00pm to 1:00pm.
Duration Process :6 hours.
Start Time (8:00am)
End time (5:00 pm)

I need a formula to calculate from Start Time 8:00am and what is the End Time? with 1 hour lunch time...

Thanks,
ET


Hello, please help me out with this one.

So I am at work workin on this report and I need a function that will make Excel automatically insert the today's date in a cell (let's say D90) when I fill the content of another cell (for example C90) and the that will be inserted will never change. I tried to use the =TODAY( ) function but it keeps updating the date in the cell to the current date if i reopen the worksheet 2 days later. I need the cell to keep in the cell the date of the day when I filled in the content of cell C90 and do not updated it every time i open the document to the actual date.. Thanks in advance!!


Hi,
I made a simple worksheet that we have been manually entering the time for employees, but there are too many errors (even with simple math). Can someone help me convert the time of ex: written 8-4:30 or 10-3 (meaning 8:00am to 4:30pm) where you have the total weekly hours? Right now I have a column for overtime. Is there a way to automatically calculate the over time also? The work day is 8-4:30 with a half hour lunch (lunch is not calculated into the hours, so you minus a half hour). 8-4:30 equals 8 hours. So, if a person works 8am to 6:30pm, how can I set it up where in the first row of time, I will type in 8-6:30pm. In the totals column to the far right, it will display 8 hours. In the (O.T.) column, it will display 2 hours.

This way, when I call in my payroll, I will have the total "regular" hours in one row and underneath, I will have the total overtime hours.

Or... does anyone have a better solution to keeping track of their hours?

Thanks!
Marty


I've been poking around trying to figure this out but can't. The time of 9 hours, 15 minutes is being returned from a calculation but I want the cell to display the 9.25 hours instead. This seems like something simple on the surface, but apparently it's not. Any help would be appreciated!


I have a sheet which has the start, stop and time taken for lunch breaks.

I want to calculate the total time worked such that i have the hours worked. So if i worked 7 hours and 30min then the total time would be 7.5hrs. But i am not sure how to take into account the lunch break time (see enclosed sheet).

anyone have any ideas?


Hello,

Please help!!!
We have a client who will pay using the 1/4, 1/2/ and 3/4 of an hour increments as follows:

From the hour mark to 6 minutes = 0 time paid
Over 7 minutes to 15 minutes = 1/4 hour 15
16 minutes to 30 minutes = 1/2 hour 30
30 minutes to 45 minutes = 3/4 hour 45
46 minutes to 60 minutes = one hour.

They work on shifts and the operation is 24 hours. Each gets 30 minutes for breaks which is not paid. Pay is biweekly and overtime is anything over 40 hours. Currently, the template we are using looks like this (sorry, I could not figure out how to paste it so you can see it in Excel layout):
WEEK 1 Sunday Monday Tuesday Wednesday Thursday Friday Saturday
5/16 5/17 5/18 5/19 5/20 5/21 5/22
TIME IN ENTER TIME, INCLUDE AM OR PM
TIME OUT
TIME IN
TIME OUT
TIME IN
TIME OUT
TIME IN Total Hours First Week
TIME OUT
HOURS WORKED-OR- choose one
*HOLIDAY WORKED
PAID HOLIDAY (not worked)
*OTHER PAID HOURS
EXPLANATION OF *HOLIDAY WORKED HRS OR *OTHER

I am very new to Excel and need help creating a formula that will allow us to calculate this timesheet? I am in desperate need for help.

Thanks..


Happy Day to all,

Can you please help me,

A1= time in
B1= time out
C1= time in
D1= time out

I want to calculate the late and under time,
Office start at 9:am w/30 mins Grace period,
The break time is one hour only, please include over breaktime in calculation.
End of office hours 6:00 pm, strickly no over time


How do I calculate the number of batches per hour? Here's what I have so far:

Cell B5: start time: 4:15 formatted as 4:15:00 am
Cell B6: finish time: 6:15 formatted as 6:15:00 am
Cell B7: total time: 2:00 formula in cell: =TEXT(B6-B5,"h:mm")
Cell B8: total batches processed: 22 (this is entered manually)
Cell B9: batches per hour: formula in cell: =B8/TEXT(B7,"h")

as long as I have this formula in cell B9 the answer comes out correct which should be 11 per hour.
If the formula in B9 is B8/B7, the answer is 264.0, Is this because of the way excel is reading the total time or the total time is formatted as a time, not an actual number? Is this the correct way to solve the problem?
answer should be 11 per hour.


Hi there

I am trying to calculate our On Time Delivery. I want this as a simple percentage of jobs. I have got this running in the following way:

Column M - Estimated Delivery dates
Column N - Actual Delivery dates
Column O - =IF(SUM(M2-N2)>0,1,0)

Then I have calculated On Time Delivery as: =SUM((SUM(O2:O252))/(COUNTA(N2:N252)))

This seems to work fine. My problem is, if we enter a date in Estimated without a corresponding Actual date, the formula for Column O fills out anyway and improves our On Time Delivery Percentage. How can I set this up so that the formula doesn't calculate if there is no data in Column N?

Any help much appreciated

Thanks,

James


I am trying to figure out how to write a formula to figure out production cycle time.
We will be building 8 "widgets" a day.
We will work 10 hours a day.
There is a 20 minute break at 9:20 am.
Production shuts down for lunch 30 minutes for lunch at 12:30.
Production starts at 6:00 am.
Here is what I can do.
Production cycle time = (10*60)-30/8 or 71.25 minutes
If we start at 6:00 am, the first scheduled cycle completion time = TIME(6,0,0+71.25/1440)

My problem is when I am trying to use a logical "IF' statement to account for the 20 minute break or lunch and still calculate the end of each cycle time through the day I receive a number of error messages.
This is the formula I am trying to make work. I have the cell the formula is in, formatted with a "mm,ss" format.
=(IF(D4+G1/1440>9:20,(D4+G1)/24,(D4+G1+15)/1440))
I have included an attachment to help (a picture is worth a thousand words).

Any help will be greatly appreciated.
I have bought a number of books in an attempt to figure this out, and I am still stumped


I am trying to calculate time based off a non-conventional quarter hour time system

example;
8:00 to 8:07 = 8.0 hrs
8:08 to 8:23 = 8.25 hrs
8:24 to 8:38 = 8.5 hrs
8:39 to 8:53 = 8.75 hrs
8:53 to 8:59 = 9.0 hrs

I am having trouble writing an equation that would sum the clock-in and clock-out times (2 per day) and display the total time in these quarter hours and adding an additional hour if it is >= to *:53. Any help would be great.


Hi all,

I have a dillemma here,

I have to create a schedule which incorporates lunches automatically (either half hour or 1-hour lunches, depending on the circumstances).

The schedule only has time in and time out, but I need excel to automatically deduct the lunch break depending on the circumstance:

If you worked less than 6 hours = no lunch
If you worked more than 6 hours, but less than or equal to 8 hours = 0.5 hour lunch
If you worked more than 8 hours = 1 hour lunch

I am assuming the formula for this will be really long, but I have looked online everywhere and have not found ONE formula for it. I can't put lunch breaks seperately, so all I have to work with is Time in/out.

Also, I wouldn't be able to use military time, so I don't know how excel can assume that time in is in the morning, and time out is in teh evening and/or half-day.

If someone can help it would be greatlyyyy appreciated


Hi was wondering if anyone can help.

I am trying to reference a cell on another worksheet, the cell is formatted to be a date. when i put in the following formula =Sheet2!A1 and i don't input a date into A1 on sheet 2 the cell containing the formula shows the date 00/01/1900, is there any way of stopping this showing, ideally the cell would be blank until I inputted a date into A1 on sheet 2

Any help would be very much appreciated


I use a excel file through the course of the day and need to insert the current date in one column and the current time in the next column. I want to be able to just highlight the selected range of cells I need to insert into and hit a macro button and have the date and time inserted into just the cells I have highlighted. I'm not sure how to make this work with just the cells I've highlighted. Any help any one can give me would be greatly appreciated. Thanks!
Mike


I have a workbook that has compliance dates in columns "F","G" and "H" from row 7. What I need is when the date in either column comes within 30 days to auto send an email, address in column "A", recipients name in column "B". and then place todays date in column 'P". ALso need to send a follow up email when either date comes within 7days and then place todays date in column "Q". If there is a date in column "P" then don't send email. If there is a date in column "Q" then don't send follow up. Can this be done without the users intervention and each time the workbook is opened.
Thanks in advance for any assistance.

Mick


From limited experience I know that excel calculates dates via serial numbers.

I have formulas to add a number of days to a cell containing an entered date and display the resulting new date (ie. 03/01/2011 (c34)+11 = 03/12/2011)

I am seeking to leave resulting formula cell blank until a date is entered in the input cell. Currently when the input cell is empty the formula cell obviously displays 1/11/1900 using the above example.

What conditional format would achieve leaving the formula cell blank until date data in entered into the source cell?

Hopefully a simpler question for your experience level than mine.


I am attempting to figure out how to change the formula to automatically subtract a 30 minute lunch if the total time for the day exceeds 6 hours worked.

B value Time of day punch in: 9:30 AM
C value =IF(D11="","","-")
D value Time of Day punch out: 6:00 PM
E value =IF(D11="","",IF(D11

I have a template that automatically populates the date field with the
current date when opened, using today(). Users then Save As to have an
archive copy of their spreadsheet. However, when they go back to access
their saved sheet, the date changes from the created date to the current
date. How do I stop this in Excel?

I know that Word lets you do this by changing the code from {DATE} to
{CREATEDATE}, but I can't find a similar setting in Excel.

Please help and thank you!



I am trying to automatically capture and record the date of a cell's last change in value (date stamp). I have an item price list and if a particular cell gets updated I want to automatically record the date of change of that cell. I realize that after I change cell A1 I could tab to cell B1 and enter Ctrl+; but if I have a hundred new prices to enter I don't want to do that (plus me or the data entry person might forget).

For instance,

A B
1 $32.17 8/17/08
2 $43.20 9/12/09

If I go in and update cell A1 to $33.98 today I would like cell B1 to read 2/16/10. But I don't want cell B2 to change.


Thanks