cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
Li
Advocate I
Advocate I

Share - calculate working days between two given dates

Hello, I was trying to find the method to return the number of working days between two given dates and found the following article

 

https://powerapps.microsoft.com/en-us/blog/excluding-weekends-and-holidays-in-date-differences-in-po...

 

However, as the author mentioned "Notice that the partial week calculation given above will not work if the start or end dates fall on weekends"

 

So I spent some time writing the following formula which seems work for weekends too:

 

If(IsNewRequestFormValid, RoundDown(DateDiff(DatePickerFrom.SelectedDate, DatePickerTo.SelectedDate, Days) / 7, 0) * 5 +
If(Weekday(DatePickerTo.SelectedDate) >= Weekday(DatePickerFrom.SelectedDate),
If(Weekday(DatePickerTo.SelectedDate) = Weekday(DatePickerFrom.SelectedDate) && (Weekday(DatePickerTo.SelectedDate) = 1 || Weekday(DatePickerTo.SelectedDate) = 7),
0,
If(RoundDown((Weekday(DatePickerTo.SelectedDate) - Weekday(DatePickerFrom.SelectedDate))/5,0) >= 1,
5,
If(Weekday(DatePickerTo.SelectedDate) = 7,
Weekday(DatePickerTo.SelectedDate) - Weekday(DatePickerFrom.SelectedDate),
If(Weekday(DatePickerFrom.SelectedDate) = 1,
Weekday(DatePickerTo.SelectedDate) - Weekday(DatePickerFrom.SelectedDate),
Mod(Weekday(DatePickerTo.SelectedDate) - Weekday(DatePickerFrom.SelectedDate), 5) + 1)))),
(7 - Weekday(DatePickerFrom.SelectedDate) + Weekday(DatePickerTo.SelectedDate) - 1)))

 

I am sure it can be improved, so please feel free to make any enhancement. 

 

 

 

 

1 ACCEPTED SOLUTION

Accepted Solutions
v-micsh-msft
Community Support
Community Support

Hi @Li,

 

Thanks for your sharing.

 

Regards,

Michael

Community Support Team _ Michael Shao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

View solution in original post

11 REPLIES 11
v-micsh-msft
Community Support
Community Support

Hi @Li,

 

Thanks for your sharing.

 

Regards,

Michael

Community Support Team _ Michael Shao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Medalow
Frequent Visitor

@Li, thank you so much for sharing this! You are a life-saver 🙂 

Cheers!

lpr
Helper I
Helper I

thanks for sharing but;

  1. What is IsNewRequestFormValid? is it a custom variable just for your case?

I don't know what you mean by working day but my requirement excluded bank holidays so Christmas Day, New Years day don't count as working days.  Here is list:

 

DescriptionHolidayDate
New Year's Day1/1/2019
Birthday of Martin Luther King, Jr.1/21/2019
Washington's Birthday2/18/2019
Memorial Day5/27/2019
Independence Day7/4/2019
Labor Day9/2/2019
Columbus Day10/14/2019
Veterans Day11/11/2019
Thanksgiving Day11/28/2019
Christmas Day12/25/2019
New Year's Day1/1/2020

 

I also need to add/subtract working days from a date.  For example something is due in 10 business days (BD) or send a reminder notice 3 BD prior to due date.  The date could be a non workday.  I found using PA to do this was impossible.  I ended up doing an Azure Function.  

Just to add a bit to this great thread, if you want to exclude public holidays/company days etc you just need to do the following (assuming SharePoint is the data source)

 

  • Create a new custom list with a couple of columns (Holiday Type, Date).  I made the Holiday column a choice one but that is up to you as this is purely used for reference by the person entering the dates.

 

pa-splist.png

 

  • Add this list as a data source in your app
  • Add the following code to the end of the code provided by @Li   (note the minus sign before CountIf)

 

- CountIf('Company & Public Holidays',Date >= DatePickerFrom, Date <= DatePickerTo)

 

  • Now the formula will remove and days from the total that are on the new list and fall between the to/from dates selected.

 

Rob

 

 

 

Thank @Rob_CTL and @Li - This has all been very helpful, but I have one problem. My company has 6 different regions with different public holidays.

 

For Public Holidays I have a single SharePoint List WIth 12 Columns, "Region 1 Holiday Name"; "Region 1 Holiday Date"; etc.

 

Another SharePoint List contains the "Staff Name", the "Region" they work in and other details.

 

How can I add to this formula - CountIf('Company & Public Holidays',Date >=DatePickerFrom, Date <=DatePickerTo) to determine from the inputted staff name, what region they are in and select the corresponding holiday dates column?

 

Thanks

I doubt this will help you but I had a lot of complicated date calculations.  I have a table that lists the bank holidays.  I was using SQL Server.  I ended up writing and Azure Function in C#.  It calculates the due date for some task and sends out an email.  I am very pro Azure Functions.  They are a great compliment to PowerApps and keep the app very simple while adding complex functionality.

 

 

        public static DateTime CalcDate(DateTime date, string dueDateOffset, Dictionary<DateTime, int> hd)
        {
            int dCnt = 0;
            DateTime calcDate = new DateTime(1900, 1, 1);
            string[] parts = dueDateOffset.Split('|');
            if (parts[0] == "CD")
            {
                if (Int32.TryParse(parts[1], out dCnt))
                {
                    calcDate = date.AddDays(dCnt);
                }
                else
                {
                    calcDate = date;
                }
            }
            if (parts[0] == "BD")
            {
                int idx = 0;
                if (Int32.TryParse(parts[1], out dCnt))
                {
                    if (dCnt < 0)
                    {
                        idx = -1;
                    }
                    else
                    {
                        idx = 1;
                    }
                    dCnt = Math.Abs(dCnt);
                    while (dCnt > 0)
                    {
                        date = date.AddDays(idx);
                        if (!(date.DayOfWeek == System.DayOfWeek.Saturday || date.DayOfWeek == System.DayOfWeek.Sunday || hd.ContainsKey(date)))
                        {
                            dCnt--;
                        }
                    }
                    calcDate = date;
                }
                else
                {
                    calcDate = date;
                }
            }
            if (parts[0] == "DD")  //Due Date: DD|1 is 1st of next month, DD|2 is 1st 2 months from now.
            {
                if (Int32.TryParse(parts[1], out dCnt))
                {
                    date = date.AddMonths(dCnt);
                    date = new DateTime(date.Year, date.Month, 1);
                    calcDate = date;
                }
            }
            if (parts[0] == "G15")  //Grace 15: G15 is 15th of next month.
            {
                date = date.AddMonths(1);
                date = new DateTime(date.Year, date.Month, 15);
                calcDate = date;
            }
            if (parts[0] == "G30")  //Grace 30: G30 is last day of next month.
            {
                date = date.AddMonths(2);
                date = new DateTime(date.Year, date.Month, 1);
                date = date.AddDays(-1);
                calcDate = date;
            }
            if (parts[0] == "YD")
            {
                if (Int32.TryParse(parts[1], out dCnt))
                {
                    date = date.AddYears(dCnt);
                    calcDate = date;
                }
            }

            return calcDate;
        }

 

Thank you. I will try and break this down but it's clear I am out of my depth here.

 

This is what I have so far, and without the countif statement at the end, it works to eliminate the weekends from between the dates chosen.

 

RoundDown(DateDiff('Leave Start Date_DatePicker'.SelectedDate, 'Leave End Date_DatePicker'.SelectedDate, Days) / 7, 0) * 5 +
If(Weekday('Leave End Date_DatePicker'.SelectedDate) >= Weekday('Leave Start Date_DatePicker'.SelectedDate),
If(Weekday('Leave End Date_DatePicker'.SelectedDate) = Weekday('Leave Start Date_DatePicker'.SelectedDate) && (Weekday('Leave End Date_DatePicker'.SelectedDate) = 1 || Weekday('Leave End Date_DatePicker'.SelectedDate) = 7),
0,
If(RoundDown((Weekday('Leave End Date_DatePicker'.SelectedDate) - Weekday('Leave Start Date_DatePicker'.SelectedDate))/5,0) >= 1,
5,
If(Weekday('Leave End Date_DatePicker'.SelectedDate) = 7,
Weekday('Leave End Date_DatePicker'.SelectedDate) - Weekday('Leave Start Date_DatePicker'.SelectedDate),
If(Weekday('Leave Start Date_DatePicker'.SelectedDate) = 1,
Weekday('Leave End Date_DatePicker'.SelectedDate) - Weekday('Leave Start Date_DatePicker'.SelectedDate),
Mod(Weekday('Leave End Date_DatePicker'.SelectedDate) - Weekday('Leave Start Date_DatePicker'.SelectedDate), 5) + 1)))),
(7 - Weekday('Leave Start Date_DatePicker'.SelectedDate) + Weekday('Leave End Date_DatePicker'.SelectedDate) - 1)) - CountIf('Public Holidays', NSW >= 'Leave Start Date_DatePicker'.SelectedDate, NSW <= 'Leave End Date_DatePicker'.SelectedDate)

 

rwittels
Responsive Resident
Responsive Resident

Thank you for this. How would one get hours difference?

Helpful resources

Announcements

Community will be READ ONLY July 16th, 5p PDT -July 22nd

Dear Community Members,   We'd like to let you know of an upcoming change to the community platform: starting July 16th, the platform will transition to a READ ONLY mode until July 22nd.   During this period, members will not be able to Kudo, Comment, or Reply to any posts.   On July 22nd, please be on the lookout for a message sent to the email address registered on your community profile. This email is crucial as it will contain your unique code and link to register for the new platform encompassing all of the communities.   What to Expect in the New Community: A more unified experience where all products, including Power Apps, Power Automate, Copilot Studio, and Power Pages, will be accessible from one community.Community Blogs that you can syndicate and link to for automatic updates. We appreciate your understanding and cooperation during this transition. Stay tuned for the exciting new features and a seamless community experience ahead!

Check Out | 2024 Release Wave 2 Plans for Microsoft Dynamics 365 and Microsoft Power Platform

On July 16, 2024, we published the 2024 release wave 2 plans for Microsoft Dynamics 365 and Microsoft Power Platform. These plans are a compilation of the new capabilities planned to be released between October 2024 to March 2025. This release introduces a wealth of new features designed to enhance customer understanding and improve overall user experience, showcasing our dedication to driving digital transformation for our customers and partners.    The upcoming wave is centered around utilizing advanced AI and Microsoft Copilot technologies to enhance user productivity and streamline operations across diverse business applications. These enhancements include intelligent automation, AI-powered insights, and immersive user experiences that are designed to break down barriers between data, insights, and individuals. Watch a summary of the release highlights.    Discover the latest features that empower organizations to operate more efficiently and adaptively. From AI-driven sales insights and customer service enhancements to predictive analytics in supply chain management and autonomous financial processes, the new capabilities enable businesses to proactively address challenges and capitalize on opportunities.    

Summer of Solutions | Week 3 Results | Win free tickets to the Power Platform Conference

We are excited to announce the Summer of Solutions Challenge!   This challenge is kicking off on Monday, June 17th and will run for (4) weeks.  The challenge is open to all Power Platform (Power Apps, Power Automate, Copilot Studio & Power Pages) community members. We invite you to participate in a quest to provide solutions in the Forums to as many questions as you can. Answers can be provided in all the communities.    Entry Period: This Challenge will consist of four weekly Entry Periods as follows (each an “Entry Period”)   - 12:00 a.m. PT on June 17, 2024 – 11:59 p.m. PT on June 23, 2024 - 12:00 a.m. PT on June 24, 2024 – 11:59 p.m. PT on June 30, 2024 - 12:00 a.m. PT on July 1, 2024 – 11:59 p.m. PT on July 7, 2024 - 12:00 a.m. PT on July 8, 2024 – 11:59 p.m. PT on July 14, 2024   Entries will be eligible for the Entry Period in which they are received and will not carryover to subsequent weekly entry periods.  You must enter into each weekly Entry Period separately.   How to Enter: We invite you to participate in a quest to provide "Accepted Solutions" to as many questions as you can. Answers can be provided in all the communities. Users must provide a solution which can be an “Accepted Solution” in the Forums in all of the communities and there are no limits to the number of “Accepted Solutions” that a member can provide for entries in this challenge, but each entry must be substantially unique and different.    Winner Selection and Prizes: At the end of each week, we will list the top ten (10) Community users which will consist of: 5 Community Members & 5 Super Users and they will advance to the final drawing. We will post each week in the News & Announcements the top 10 Solution providers.  At the end of the challenge, we will add all of the top 10 weekly names and enter them into a random drawing.  Then we will randomly select ten (10) winners (5 Community Members & 5 Super Users) from among all eligible entrants received across all weekly Entry Periods to receive the prize listed below. If a winner declines, we will draw again at random for the next winner.  A user will only be able to win once overall. If they are drawn multiple times, another user will be drawn at random.  Individuals will be contacted before the announcement with the opportunity to claim or deny the prize.  Once all of the winners have been notified, we will post in the News & Announcements of each community with the list of winners.   Each winner will receive one (1) Pass to the Power Platform Conference in Las Vegas, Sep. 18-20, 2024 ($1800 value). NOTE: Prize is for conference attendance only and any other costs such as airfare, lodging, transportation, and food are the sole responsibility of the winner. Tickets are not transferable to any other party or to next year’s event.   ** PLEASE SEE THE ATTACHED RULES for this CHALLENGE**   Week 1 Results: Congratulations to the Week 1 qualifiers, you are being entered in the random drawing that will take place at the end of the challenge. Community MembersNumber of SolutionsSuper UsersNumber of Solutions @anandm08  23 @WarrenBelz  31 @DBO_DV  10 @Amik  19 AmínAA 6 @mmbr1606  12 @rzuber  4 @happyume  7 @Giraldoj  3@ANB 6 (tie)   @SpongYe  6 (tie)     Week 2 Results: Congratulations to the Week 2 qualifiers, you are being entered in the random drawing that will take place at the end of the challenge. Community MembersSolutionsSuper UsersSolutions @anandm08  10@WarrenBelz 25 @DBO_DV  6@mmbr1606 14 @AmínAA 4 @Amik  12 @royg  3 @ANB  10 @AllanDeCastro  2 @SunilPashikanti  5 @Michaelfp  2 @FLMike  5 @eduardo_izzo  2   Meekou 2   @rzuber  2   @Velegandla  2     @PowerPlatform-P  2   @Micaiah  2     Week 3 Results: Congratulations to the Week 3 qualifiers, you are being entered in the random drawing that will take place at the end of the challenge.   Week 3:Community MembersSolutionsSuper UsersSolutionsPower Apps anandm0861WarrenBelz86DBO_DV25Amik66Michaelfp13mmbr160647Giraldoj13FLMike31AmínAA13SpongYe27  

Updates to Transitions in the Power Platform Communities

We're embarking on a journey to enhance your experience by transitioning to a new community platform. Our team has been diligently working to create a fresh community site, leveraging the very Dynamics 365 and Power Platform tools our community advocates for.  We started this journey with transitioning Copilot Studio forums and blogs in June. The move marks the beginning of a new chapter, and we're eager for you to be a part of it. The rest of the Power Platform product sites will be moving over this summer.   Stay tuned for more updates as we get closer to the launch. We can't wait to welcome you to our new community space, designed with you in mind. Let's connect, learn, and grow together.   Here's to new beginnings and endless possibilities!   If you have any questions, observations or concerns throughout this process please go to https://aka.ms/PPCommSupport.   To stay up to date on the latest details of this migration and other important Community updates subscribe to our News and Announcements forums: Copilot Studio, Power Apps, Power Automate, Power Pages

Top Solution Authors
Top Kudoed Authors
Users online (5,116)