Hello, I was trying to find the method to return the number of working days between two given dates and found the following article
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.
Solved! Go to Solution.
Hi @Li,
Thanks for your sharing.
Regards,
Michael
Hi @Li,
Thanks for your sharing.
Regards,
Michael
thanks for sharing but;
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:
Description | HolidayDate |
New Year's Day | 1/1/2019 |
Birthday of Martin Luther King, Jr. | 1/21/2019 |
Washington's Birthday | 2/18/2019 |
Memorial Day | 5/27/2019 |
Independence Day | 7/4/2019 |
Labor Day | 9/2/2019 |
Columbus Day | 10/14/2019 |
Veterans Day | 11/11/2019 |
Thanksgiving Day | 11/28/2019 |
Christmas Day | 12/25/2019 |
New Year's Day | 1/1/2020 |
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)
- CountIf('Company & Public Holidays',Date >= DatePickerFrom, Date <= DatePickerTo)
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)
Thank you for this. How would one get hours difference?
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