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How to add number of business/working days or hours to a date in Excel?

You may need to add a number of business days or hours to a date in order to know the exact time you will finish the task during the working time. In this article, we will show you methods of adding number of business/working days or hours to a date in Excel.

Add number of business days to a date with formula

Add number of business hours to a date with formula


Add number of business days to a date with formula

Supposing date 2016/1/5 locates on cell A2, if you want to add 12 days only including working days to it without weekends, please do as follows.

1. Select a blank cell, enter formula =WORKDAY(A2,12) into the Formula Bar, and then press the Enter key. See screenshot:

Then you will get the date after adding 12 working days.

Notes:

1. In the formula, A2 is the cell contains the date you want to add working days to, 12 is the number of working days you will add to the date. Please change them as you need.

2. With the above formula, you will get the result excluding weekends. But it may include some holidays after calculating. If you want to exclude both weekends and holidays, please apply this formula =WORKDAY(A2,B2,C2).

doc add working hours days to a date 1

In this formula, A2 contains the date you will add working days to, B2 contains the number of working days, and C2 locates the date of holiday.

3. After applying the formulas, if you get a 5-digits number, please convert the cell format to date format.


Add number of business hours to a date with formula

Supposing you have a start date and time, number of working hours needed to add, the start and end times of your work hours and the holiday you want to exclude as below screenshot shown. For adding number of business hours to the date, please do as follows.

doc add working hours days to a date 1

1. Select a blank cell (says cell C2), enter the following formula into the formula bar, and then press the Enter key.

=WORKDAY(A2,INT(B2/8)+IF(TIME(HOUR(A2),MINUTE(A2),SECOND(A2))+TIME(MOD(B2,8),MOD(MOD(B2,8),1)*60,0)>
$F$2,1,0),$G$2:$G$2)+IF(TIME(HOUR(A2),MINUTE(A2),SECOND(A2))+TIME(MOD(B2,8),MOD(MOD(B2,8),1)*60,0)>$F$2,$E$2
+TIME(HOUR(A2),MINUTE(A2),SECOND(A2))+TIME(MOD(B2,8),MOD(MOD(B2,8),1)*60,0)-$F$2,TIME(HOUR(A2),MINUTE(A2),SECOND(A2))
+TIME(MOD(B2,8),MOD(MOD(B2,8),1)*60,0))

Then you can see the result as below screenshot shown.

doc add working hours days to a date 1

Notes:

1. In the formula, A2 is the cell contains the date, B2 contains the working hours you will add to date, E2 and F2 are the start and end time of your work hours, and $G$2 is the specific holiday date. You can change them based on your needs.

2. If you get a number after applying this formula, please change the cell format to a date and time format.

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Comments (22)
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This comment was minimized by the moderator on the site
I have copy and pasted the formula below from the Add Number Of Business Hours To A Date With Formula step above. What is the equivalent formula where you could start with an end date and work backwards to the start date (instead of starting with the start date to find the end date).

=WORKDAY(A2,INT(B2/8)+IF(TIME(HOUR(A2),MINUTE(A2),SECOND(A2))+TIME(MOD(B2,8),MOD(MOD(B2,8),1)*60,0)>
$F$2,1,0),$G$2:$G$2)+IF(TIME(HOUR(A2),MINUTE(A2),SECOND(A2))+TIME(MOD(B2,8),MOD(MOD(B2,8),1)*60,0)>$F$2,$E$2
+TIME(HOUR(A2),MINUTE(A2),SECOND(A2))+TIME(MOD(B2,8),MOD(MOD(B2,8),1)*60,0)-$F$2,TIME(HOUR(A2),MINUTE(A2),SECOND(A2))
+TIME(MOD(B2,8),MOD(MOD(B2,8),1)*60,0))
This comment was minimized by the moderator on the site
This should be a simple one for you guys but I am working in a dealership and trying to create a simple formula that will automatically calculate how many working days we have in a month... example (6 days a week, because we work every Saturday but we are closed every Sunday). Thanks in advance for your help.
This comment was minimized by the moderator on the site
Hi Joshua Player,
For example, you need to count the number of working days in semptember including every Saturday. You need to do as follows:
1. Enter the start date and the end date of September in different cells, such as the start date 9/1/2022 in B1 and the last date 9/30/2022 in B2.
2. Apply one of the following formulas.
If you don't need to exclude holidays, apply this formula and press the Enter key to get the result:
=SUMPRODUCT(--(TEXT(ROW(INDIRECT(B1&":"&B2)),"dddd")<>"Sunday"))
If you need to exclude holidays (suppose the holiday dates listed in B3:C3), apply this formula and press the Ctrl + Shift + Enter keys to get the result
=SUMPRODUCT(--(TEXT(ROW(INDIRECT(B1&":"&B2)),"dddd")<>"Sunday"))-SUMPRODUCT(--IF((B3:C3>=B1)*(B3:C3<=B2),(TEXT(B3:C3,"dddd")<>"Sunday"), FALSE))
This comment was minimized by the moderator on the site
Hello Everyone,

Add Number Of Business Hours To A Date With Formula

I am not an expert but it gives me an error, everytime I insert the formula on the C2 cell. I followed all the instructions.
I have already formated all cells to time and date but still get an error saying that the formula contains an error.
Can someone explain or upload or send me an excel file with the formula already prepared?
Thanks in advance
This comment was minimized by the moderator on the site
Hi Renato,
Can you provide a screenshot of the formula error you encountered? Here I upload an Excel workbook with the formula prepared. Please download it and have a try.
This comment was minimized by the moderator on the site
Hi Crystal,

Thank you so much! I have downloaded the excel workbook and now it works.
Thanks again!
This comment was minimized by the moderator on the site
Good afternoon Sir,

How to get end date and time if i have start day and time together and to add "n" working hours excluding non working hours.

example 1) if start date=02/06/2022 02:00 and to add 4:00 working hours and the working hours are from 08:00 to 18:00 and the non working hours to be excluded are of from 18:00 to 08:00 and the end date should be like 02/06/2022 12:00. what is the formula for this one sir.
2) if start date=02/06/2022 16:00 and to add 4:00 working hours and the working hours are from 08:00 to 18:00 the and the non working hours to be excluded are of from 18:00 to 08:00 and the end date should be like 03/06/2022 10:00. what is the formula for this one sir.

In CCC to be completed time also same formula given sir.

Can u please help me with the formula sir?
This comment was minimized by the moderator on the site
How Can I add hours with working date+time. For E.g, This is the time 20/10/21 8:00am and I need to add hours with in working days and I need to add 4 hours(assume), and there are working hours between 08:00 to 05:00 and there are no holidays. How to add?
This comment was minimized by the moderator on the site
Hi, Supposing your case as shown in the screenshot below, to get a future date and time that falls within specified working hours, please try this formula:<div data-tag="code">=WORKDAY(A2,INT(B2/8)+IF(TIME(HOUR(A2),MINUTE(A2),SECOND(A2))+TIME(MOD(B2,8),MOD(MOD(B2,8),1)*60,0)>$E$2,1,0))+IF(TIME(HOUR(A2),MINUTE(A2),SECOND(A2))+TIME(MOD(B2,8),MOD(MOD(B2,8),1)*60,0)>$E$2,$D$2+TIME(HOUR(A2),MINUTE(A2),SECOND(A2))+TIME(MOD(B2,8),MOD(MOD(B2,8),1)*60,0)-$E$2,TIME(HOUR(A2),MINUTE(A2),SECOND(A2))+TIME(MOD(B2,8),MOD(MOD(B2,8),1)*60,0))
This comment was minimized by the moderator on the site
the formula adding work hours works mathwise, but it wont display the accurate time, just says 0:00. anyone know why?
This comment was minimized by the moderator on the site
can some help me to get a formula for below condition
I am unable to get the time , If i do =WORKDAY.INTL(A2,B2,1) ---Output is : Deal Date: 9/11/2018 0:00, Where the time is not coming up, As time should come with 18:34 PM

A2: Deal Date :9/7/2018 18:34 PM
B2: Days: 2
Output is :New Deal Date: 9/11/2018 0:00

Required Output is 9/11/2018 18:34 PM - Plz help me with the formula!
--------------------
9/7/2018 - Friday , I need to add 2 days excluding weekends, So if i add 2 days to 9/7/2018(Friday ) its Tuesday (9/11/2018) by removing the Sat & Sun.
This comment was minimized by the moderator on the site
Hi Harish,
Sorry can't help you with that yet. Thanks for your comment.
This comment was minimized by the moderator on the site
How to add a cell in the excel says that maximum hours per day (i.e., 8 hours) The time calculation to be bound by 8 hours per day. Please help me if we can have the spread sheet cap the calculation at 8.?
This comment was minimized by the moderator on the site
How to get cells in excel formula (H6; H7; H8; H9)
Forma C2 = =WORKDAY(B2;MAX(ROUNDUP((E2-IF((COUNTIF($J$4:$J$91;INT(B2))=0)*(WEEKDAY(B2;2)<=5);IF(MOD(B2;1)>$H$3;0;IF(MOD(B2;1)>=$H$5;(H3-MOD(B2;1))*24;($H$3-MAX(MOD(B2;1);$H$2)-($H$5-MAX(MOD(B2;1);$H$4)))*24));0))/(($H$3-$H$2-($H$5-$H$4))*24);0);0);$J$4:$J$91)+$H$2+(IFERROR(CEILING(MOD((E2-IF((COUNTIF($J$4:$J$91;INT(B2))=0)*(WEEKDAY(B2;2)<=5);IF(MOD(B2;1)>$H$3;0;IF(MOD(B2;1)>=$H$5;($H$3-MOD(B2;1))*24;($H$3-MAX(MOD(B2;1);$H$2)-($H$5-MAX(MOD(B2;1);$H$4)))*24));0))/(($H$3-$H$2-($H$5-$H$4))*24);1)-0,00000001;0,00000001);1)*($H$3-$H$2-($H$5-$H$4))*24+(IFERROR(CEILING(MOD((E2-IF((COUNTIF($J$4:$J$91;INT(B2))=0)*(WEEKDAY(B2;2)<=5);IF(MOD(B2;1)>H3;0;IF(MOD(B2;1)>=$H$5;($H$3-MOD(B2;1))*24;($H$3-MAX(MOD(B2;1);$H$2)-($H$5-MAX(MOD(B2;1);$H$4)))*24));0))/(($H$3-$H$2-($H$5-$H$4))*24);1)-0,00000001;0,00000001);1)*($H$3-$H$2-($H$5-$H$4))*24>($H$4-$H$2)*24)*($H$5-$H$4)*24)/24

and C3 = =WORKDAY(B3;MAX(ROUNDUP((E3-IF((COUNTIF($J$4:$J$91;INT(B3))=0)*(WEEKDAY(B3;2)<=5);IF(MOD(B3;1)>$H$3;0;IF(MOD(B3;1)>=$H$5;(H4-MOD(B3;1))*24;($H$3-MAX(MOD(B3;1);$H$2)-($H$5-MAX(MOD(B3;1);$H$4)))*24));0))/(($H$3-$H$2-($H$5-$H$4))*24);0);0);$J$4:$J$91)+$H$2+(IFERROR(CEILING(MOD((E3-IF((COUNTIF($J$4:$J$91;INT(B3))=0)*(WEEKDAY(B3;2)<=5);IF(MOD(B3;1)>$H$3;0;IF(MOD(B3;1)>=$H$5;($H$3-MOD(B3;1))*24;($H$3-MAX(MOD(B3;1);$H$2)-($H$5-MAX(MOD(B3;1);$H$4)))*24));0))/(($H$3-$H$2-($H$5-$H$4))*24);1)-0,00000001;0,00000001);1)*($H$3-$H$2-($H$5-$H$4))*24+(IFERROR(CEILING(MOD((E3-IF((COUNTIF($J$4:$J$91;INT(B3))=0)*(WEEKDAY(B3;2)<=5);IF(MOD(B3;1)>H4;0;IF(MOD(B3;1)>=$H$5;($H$3-MOD(B3;1))*24;($H$3-MAX(MOD(B3;1);$H$2)-($H$5-MAX(MOD(B3;1);$H$4)))*24));0))/(($H$3-$H$2-($H$5-$H$4))*24);1)-0,00000001;0,00000001);1)*($H$3-$H$2-($H$5-$H$4))*24>($H$4-$H$2)*24)*($H$5-$H$4)*24)/24
But the correct value is in D2 and D3. How to get it?
This comment was minimized by the moderator on the site
IF WE HAVE TO WRITE THE SAME FORMULA WITH WORKDAY.INTL THAN HOW TO WRITE IT
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