weekday

问题 (first, sorry for my bad english, i'm a beginner) I have a chart of percent by date. I would like to display every day of the current week in the x-axis. So, i tried to find how to get the seven days of the week. that's what i have : var curr = new Date; // get current date var first = curr.getDate() - curr.getDay();//to set first day on monday, not on sunday, first+1 : var firstday = (new Date(curr.setDate(first+1))).toString(); for(var i = 1;i<7;i++){ var next = first + i; var nextday =

问题 So I have a script that does multiple checks for 32, 48 and 72 hours ago. Basically I check my database for entries that are at least x hours old. Now this works fine like this: $date = date('Y-m-d H:i:s',strtotime('-32 hours')); $q = "SELECT * FROM `table` WHERE `date` <= '".$date."'"; Now I want this to exclude weekends. I know you can use weekdays within strtotime to get this effect however this doesn't work for hours. For 48 hours it's easy because I can simply do the following: echo date

问题 Here is the code I currently have that gives me the last 12 days SELECT * FROM table WHERE analysis_date >= current_date - interval '12' day; analysis_date is the date column in the table. I understand why this isn't working because it's not accounting for business days. How can I rewrite this so that I get an interval of the last 12 business days? I tried search online and found extract(dow from (date)) But I couldn't find an example where I need a weekday interval. Any help would be

问题 Does anyone know if there is a way to set the first day of the week on a NSCalendar, or is there a calendar that already has Monday as the first day of the week, instead of Sunday. I'm currently working on an app that is based around a week's worth of work, and it needs to start on Monday, not Sunday. I can most likely do some work to work around this, but there will be a lot of corner cases. I'd prefer the platform do it for me. Thanks in advance Here's some the code that I'm using. it's

问题 Given a Month and a weekday, I need to build a function that can retrieve the day number of all Mondays, Tuesdays, Wednesdays, Thursdays and Fridays. Let's say I give the function this month, September 2012 and weekday number 1. The function should retrieve all the Mondays in September 2012 which are: 3, 10, 17 and 24 Please note that to me weekday number 1 is Monday, number 2 Tuesday, 3 is Wednesday, 4 Thursday and 5 Friday. So far I've have done: getting the first day of the week given

问题 I'm trying to find if a date is Monday. To do this I proceed this way : #define kDateAndHourUnitsComponents NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit NSCalendar *calendar = [NSCalendar autoupdatingCurrentCalendar]; // for test and debug purpose NSDateComponents* b = [calendar components:kDateAndHourUnitsComponents fromDate:retDate]; int a=[[calendar components:kDateAndHourUnitsComponents fromDate:theDate]

问题 I looked all over and did not find a function that gives the number of business days between two dates. How would I do that? Of course it would not count the holidays, since each country has his own, but that I could do with some specific functions for my country. EDIT: I did not ask how to get the number of days between two dates. 回答1: So your definition of business days seems to be Mondays through Fridays. Let's call these “workdays”, as opposed to “weekends” (which are Saturday and Sunday)

问题 I have a date in column H10 and need to add 45 days to this date in the next Column I If there are not dates Column I must be blank If the 45th day falls on a weekend the calculation must move to the next workday which is Monday 回答1: You need to combine two fundamental functions. First, DATE + INT = DATE . For example, if H10 = 1/8/2015 and H11 = H10 + 10 then H11 will show 1/18/2015 . In your case, you want to use H10 + 45 . Second, you can use the Weekday(date,mode) function to determine

问题 I would like to be able to schedule a UILocalNotification to repeat at the same time every day, but only on weekdays (no Saturdays or Sundays). Is this possible using the repeat interval feature of UILocalNotification, or is my only option to create some kind of class that handles the time and date and works out when to schedule (several) notifications in advance? Thanks in advance. 回答1: Yes, this is possible. Set the repeatInterval of the UILocalNotication to NSWeekdayCalendarUnit . Here's a

问题 I'm having trouble converting a .csv column of data with weekdays to a number (so that 1 = Monday, 2 = Tuesday, 3 = Wednesday, etc). I'm trying to use the strptime feature as shown here: http://www.inside-r.org/r-doc/base/strftime Since I want to convert the weekday to a number, I used the "%u" formatting option. Here's my code below: > newweekdaynum <- strptime(SFCrimeData$DayOfWeek, "%u") where SFCrimeData is a data set I have that has a bunch of crime information. No errors come up after I