A day of the week. Used for questions related to programming problems that involve `weekday`: calculation, triggering an event, discovery of a specific day etc
Questions tagged [weekday]
462 questions
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Dropping / Retaining rows based on weekdays and holidays. Python 3.8 / Spyder / W10
In a data frame, I wish to drop all the rows with dates which do not fall on Last Friday of the Month.
But if data does not exist on a Friday (being a holiday) then retain row from a day before i.e. Thursday.
If Friday and Thursday both are holidays…

Dan
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2 answers
Formula for if a cell is blank, It will consider the previous cell as the value for that cell and sum the cells together
I am trying to figure out how to sum a row of cells where if a cell in the row has a letter, for example a letter "X", to consider the cell to the left of it in the row as a value for that cell when summing up the row. For my table the reason behind…

Israel Perez Jr
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1 answer
Flutter: Get Wrong days of the week
from Monday - Thursday, I get the right days, but from Friday, I get the wrong days. Why?
Code example:
Text(DateFormat('EEEE').format(DateTime(DateTime.friday))),
And i get Saturday. Is that a bug?

Tolga
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1 answer
Transform "Y-m-w" to date - first Monday of the week
I am trying to convert %Y-%m-%w to the first date of the respective week starting on Monday.
So %Y-%m-%w to %Y-%m-%d
x <- c("2020-09-01", "2020-09-03", "2020-09-04", "2020-09-05")
2020-09-01 -> 2020-08-31
2020-09-03 -> 2020-09-14
2020-09-04 ->…

Clemens Haerder
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1
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2 answers
How to change the ouput from 1 to Monday?
I am using code from here: https://www.geeksforgeeks.org/find-day-of-the-week-for-a-given-date/. It finds the day of the week a date falls on. The output is a number corresponding to the day of the week but I would like it to say 'Monday' instead of…
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2 answers
function gives wrong total of a week day between a date range in django
I have been looking at this function for hours and I can't seem to figure out why it is not giving me the result I am expecting. I have a test that generates a datetime start and datetime end. I want to calculate how many 'mondays' or any given day…

sam
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Difference between two timestamps with different weekdays?
I've the following dates:
Tue 19:00-20:00
Wed 04:25-15:14
How can i get the difference between Tue 20:00 and Wed 04:25?
I've tried to transform it in datetime objects but since i don't have the day of the month or a year both objects will get the…

Rafa Acioly
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2 answers
Python: Implement a column with the day of the week based on the "Year", "Month", "Day" columns?
I try to create a new column with the day of the week:
df2019['Weekday']=pd.to_datetime(df2019['Year'],df2019['Month'],df2019['Day']).weekday()
And I get the following error:
ValueError: The truth value of a Series is ambiguous. Use a.empty,…

Miguel Gonzalez
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Google Charts - Show day of the week in local language
How do I make a Google Chart axis to use day of the week names in different languages (e.g. in German).
For tooltip I use
var formatter = new google.visualization.DateFormat({ pattern: 'EEEE, dd.MM.YYYY' });
Here it produces Tuesday, 31.03.2020,…

Matti
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0 answers
Symfony Weekday Select
this is my first question, so sorry if I miss some information.
In my project I try to create a FormType with a ChoiceType. The ChoiceType should contain the weekdays (eg. monday, tuesday, etc).
Now I was wondering how I should deal with this…

Haiberd
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1
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3 answers
How to get last Sunday's date?
I need to show last Sunday's date in a cell for a weekly report that I'm creating on google sheets. I've been googling to find a solution and the closest I found is this:
=TODAY()+(7-WEEKDAY(TODAY(),3))
But this gives next Monday's date. Any idea…

Abhay
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1 answer
in mssql get first, second, third weekdate of current month, what date would it be the next month
Given a date lets say Aug 2, 2019 which is first friday of the month. what would be the first friday of next month (sept 6th). Now lets say I have sept 26th which is the last thur of the month. what date would it be for the last thur of next month.…

Uday Patel
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1 answer
Is there a replacement for this syntax?
with the new update on pandas I can't use this function that I used on on Datacamp learning course - (DAYOFWEEK doesn't exist anymore)
days_of_week = pd.get_dummies(dataframe.index.dayofweek,
prefix='weekday',
…

Thiago AV
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How can I know the number of remaining mondays, tuesdays, wednesdays, ..., and sundays in a month using SQL?
I want to update the values of a row that has a date column and I want to generate the column values of RemainingMondays, RemainingTuesdays, etc. in that month.
For example if I have 2019-03-20 (March 20th, 2019) I need to update that row with the…

Arturo Reyes
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2 answers
Mapping data to the same weekday in another year in Python pandas
I have a pandas dataframe of electricity consumption data throughout a year, but would like to update the table to be in another year. I would like the data values to fall on the same weekdays as before.
What I have:
Date 00:00 ... …

N.Homer
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