A day is a unit of time which is equal to an interval of 24 hours. It may be used for example for measuring the length of a period (see also period tag). For questions about dates or day of week rather consider tags like date or dayofweek.
Questions tagged [days]
554 questions
366
votes
14 answers
Calculate days between two Dates in Java 8
I know there are lots of questions on SO about how to get Dates in Java, but I want an example using new Java 8 Date API. I also know about the JodaTime library, but I want a method without relying on external libraries.
The function needs to be…

Marcos
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252
votes
11 answers
momentJS date string add 5 days
i have a start date string "20.03.2014" and i want to add 5 days to this with moment.js but i don't get the new date "25.03.2014" in the alert window.
here my javascript Code:
startdate = "20.03.2014";
var new_date = moment(startdate,…

Dave
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60
votes
11 answers
Increase days to php current Date()
How do I add a certain number of days to the current date in PHP?
I already got the current date with:
$today = date('y:m:d');
Just need to add x number of days to it
Anomynous
39
votes
5 answers
How to Subtract Days in MySQL
How can I subtract time in MySQL? For example, today is 16 March; I want to subtract 15 days to reach 1 March. Are there any methods that can be used to subtract 15 days from the current date?
Steven Spielberg
24
votes
10 answers
Algorithm to add or subtract days from a date?
I'm trying to write a Date class in an attempt to learn C++.
I'm trying to find an algorithm to add or subtract days to a date, where Day starts from 1 and Month starts from 1. It's proving to be very complex, and google doesn't turn up much,
Does…

bcoughlan
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23
votes
7 answers
How can I calculate the number of days between two dates in Perl?
I want to calculate (using the default Perl installation only) the number of days between two dates. The format of both the dates are like so 04-MAY-09. (DD-MMM-YY)
I couldn't find any tutorials that discussed that date format. Should I be building…
Perlisasinger
22
votes
4 answers
How can I compare two dates, return a number of days
how can I compare two dates return number of days.
Ex: Missing X days of the Cup.
look my code.
NSDateFormatter *df = [[NSDateFormatter alloc]init];
[df setDateFormat:@"d MMMM,yyyy"];
NSDate *date1 = [df dateFromString:@"11-05-2010"];
…

Dans
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19
votes
4 answers
How to calculate when one's 10000 day after his or her birthday will be
I am wondering how to solve this problem with basic Python (no libraries to be used): How can I calculate when one's 10000 day after their birthday will be (/would be)?
For instance, given Monday 19/05/2008, the desired day is Friday 05/10/2035…

Dimitris
- 569
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18
votes
4 answers
django days-of-week representation in model
I have this "Jobs Server" model that i'm building. I want to include a field that will save which days of the week this job will run on. Ultimately in the UI, i would like the user to be able to have a series of check boxes(one for each day) that…

nnachefski
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18
votes
2 answers
How can I get the names of days of week in JodaTime
I've a problem to calculate an entire name list of days of week, using JodaTime.
Pratically, I would like to see a similar output based on Locale:
1 day: Sunday
2 day: Monday
3 day: Tuesday
4 day: Wednesday
5 day: Thursday
6 day: Friday
7 day:…

user3449772
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16
votes
1 answer
How to add ten days to existing date column in Pyspark
I have a dataframe in Pyspark with a date column called "report_date".
I want to create a new column called "report_date_10" that is 10 days added to the original report_date column.
Below is the code I tried:
df_dc["report_date_10"] =…

PineNuts0
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16
votes
1 answer
Javascript Epoch Time In Days
I need the epoch time in days. I've seen posts on how to translate it to date but none in days. I'm pretty bad with epoch time...how could I get this?

dman
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16
votes
6 answers
JavaScript format number to day with always 3 digits
Possible Duplicate:
How can I create a Zerofilled value using JavaScript?
I have to output a day number that must always have 3 digits. Instead of 3 it must write 003, instead of 12 it must write 012. If it is greater than 100 output it without…

ali
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12
votes
9 answers
Most efficient way to get the dates for the past 7 days?
I've got two functions which I can use to get the dates of the past 7 days and formats the into a particular format but it's pretty slow, does anybody know of a better way maybe using a loop or something similar?
function formatDate(date){
var…

user2236497
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9
votes
13 answers
Get number of weekdays in a given month
I want to calculate the number of weekdays days in a give month and year. Weekdays means monday to friday. How do i do it ?

Hacker
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